The Green Man: A Visitor From Space
Harold M. Sherman
1946

Behind the Flying Saucers
Frank Scully
1950

The Cosmic Flame
Vargo Statten
1950

The Flying Saucer
Bernard Newman
1950

The Flying Saucer As I Saw It
Kenneth Arnold
1950

Flying Saucers Are Real
Donald Keyhoe
1950

The Flying Saucers Are Real
Donald Keyhoe
1950

Miss Dairylea's Book of Great Discoveries
Anonymous
1950s

The Riddle of the Flying Saucers is Another World Watching?
Gerald Heard
1950

Warrior of Mars
John Russell Fearn
1950

Behind The Flying Saucers
Frank Scully
1951

Building Reading Skills
Leila Armstrong & Rowena Hargrave
1951

By Space Ship to the Moon
Jack Coggins and Fletcher Pratt
1951

Captive on the Flying Saucers
Ralph L. Finn
1951

Case of the Little Green Men
Mack Reynolds
1951

Hostile Worlds
Gill Hunt
1951

Beyond the End of Time
Frederik Pohl, ed.
1952

Bio-Muton
Lee Elliot
1952

The Black Sphere
Victor La Salle
1952

Coming of the Saucers
Kenneth Arnold & Raymond Palmer
1952

Coming of the Saucers
Kenneth Arnold & Raymond Palmer
1952

Destination Alpha
Berl Cameron
1952

Fission
Gill Hunt
1952

The Flying Saucer
John Sylvester
1952

Invaders of Earth
Groff Conklin, ed.
1952

The Man From Tomorrow
Vargo Statten
1952

Mystery Planet
Edgar Rees Kennedy
1952

The Puppet Masters
Robert A. Heinlein
1952

The Red Peri
Stanley G. Weinbaum
1952

Ships of Vero
Brian Shaw
1952

Son Of The Stars
Raymond F. Jones
1952

The Space Ship Under the Apple Tree
Louis Slobodkin
1952

Star of Ill-Omen
Dennis Wheatley
1952

Susie Saucer & Ronnie Rocket
Stella Clair
1952

Twenty Four Hours
Neil Charles
1952

The Weapon Shops of Isher
A.E. van Vogt
1952