S:

Saucer attack!.....................................................................................................nesheim e. & f.

Saucer diary..................................................................................................................norkin i.

Saucer post ... 3-0 blue...........................................................................................stringfield l.h.

Saucer wisdom..............................................................................................................rucker r.

Saucers of the illuminati...................................................................................................keith j.

Scareforce.......................................................................................................................hough

Science and the UFO's..............................................................................randles j., warrington p.

Science-fiction et soucoupes volantes...........................................................................méheust b.

Scientific study of UFO's, university of colorado.............................................................condon e.u.

Searchers, abduction case US..........................................................................................felber r.

Secret cipher of the ufonauts...................................................................................greenfield a.h.

Secret life, firsthand accounts of UFO abductions............................................................jacobs d.m.

Secret of the ages, UFO's from inside the earth.......................................................le poer trench b.

Secret of the saucers..................................................................................................angelucci o.

Secret of the schauberger saucers...................................................................................resines j.

Secret UFO diary...........................................................................................................moore w.

Secret vows, our lives with extraterrestrials...............................................................twiggs d.r.& b.

Secrets of the UFO's.......................................................................................................elkins d.

Sedona UFO connection................................................................................................dannelley

Sexual encounters with extraterrestrials.........................................................................turner c.l.

Shadow of the unknown..............................................................................................lorenzen c.

Shining the light [meerdere delen]

Sie sind da, UFO dokumentation........................................................................................good t.

Sightings ( NIET Sightings, UFO's)...............................................................................michaels s.

Sightings, UFO's........................................................................................................michaels s.

Silent invasion, the shocking discoveries of a researcher....................................................crystall e.

Situation red, the UFO siege....................................................................................stringfield l.h.

Sky crash...............................................................................................butler b., randles j., e.a.

Skycreatures, living UFO's........................................................................................constable t.j.

Socoro saucer in a pentagon pantry...............................................................................stanford r.

Somebody else is on our moon...................................................................................leonard g.h.

Something in the air.....................................................................................................randles j.

Song of the greys.........................................................................................................kerner n.

Sons of the sun.........................................................................................................homet m.f.

Soucoupes volantes - 25 ans d'enquêtes........................................................................garreau c.

Soucoupes volantes et civilisations d'outre espace............................................................tarade g.

Soviet UFO files..........................................................................................stonehill p., mantle p.

Space aliens from the pentagon......................................................................................lyne r.w.

Space, gravity and the flying saucers.............................................................................cramp l.g.

Spacemen in the ancient east.......................................................................................drake r.w.

Spaceships of the pleiades, the billy meier story...............................................................korff k.k.

Spaceships of the visitors..................................................................................randle k., estes r.

Star children, the true story of alien offspring among us ..................................................randles j.

Status inconsistency theory and flying saucer sightings.....................................................warren l.

Steps to the stars...........................................................................................................fry d.w.

Strange but true casebook............................................................................................randles j.

Strange but true, Aliens.................................................................................................wilson r.

Strange but true, UFO's.................................................................................................wilson r.

Strange creatures from time and space...............................................................................keel j.

Strange effects from UFO's............................................................................................lore g.i.r.

Strange encounters....................................................................................................sutherly c.

Strange encounters, bizarre & eerie contacts with UFO occupants....................................beckley t.g.

Strange northwest.........................................................................................................bader c.

Strange south yorkshire.................................................................................................clarke d.

Stranger at the pentagon..........................................................................................stranges f.e.

Stranger than science.................................................................................................edwards f.

Strangers from space.....................................................................................................smith s.

Strangers from the skies...............................................................................................steiger b.