Tomorrow's World
Hunt Collins
1956

Truth About Flying Saucers
Aime Michel
1956

Two Nights to Remember
Carl Anderson
1956

Zip-Zip And His Flying Saucer
John M. Schealer
1956

The Earth In Peril
Donald A. Wollheim, ed.
1957

The Expanding Case for UFO
M.K. Jessup
1957

The Flying Saucer Conspiracy
Donald E. Keyhoe
1957

Flying Saucer Pilgrimage
Bryant and Helen Reeve
1957

Flying Saucer Revelations
Michael X. Barton
1957

Flying Saucers Have Landed
Desmond Leslie and George Adamski
1957

Flying Saucers: Fact or Fiction
Max B. Miller
1957

My Trip to Mars, The Moon and Venus
Buck Nelson
1957

Operation: Outer Space
Murray Leinster
1957

Pilgrimage to Earth
Robert Sheckley
1957

Radio Fun Annual - 1957
anonymous
1957

Saucer Diary
Israel Norkin
1957

They Rode in Space Ships
Gavin Gibbons
1957

Troubled Star
George O. Smith
1957

The Truth About Flying Saucers
Aime Michel
1957

A Call at Dawn
Kelvin Rowe
1958

Aboard a Flying Saucer
Truman Bethurum
1958

The Amazing Mr. Lutterworth
Desmond Leslie
1958

The Big Ball
Frank Earl Jones
1958

The Big Ball
Frank Earl Jones
1958

Coming of the Space Ships
Gavin Gibbons
1958

The Edge of Beyond
Captain W.E. Johns
1958

Flying Saucer Review's World Roundup of UFO Sightings And Events
Flying Saucer Review
1958

Flying Saucers and the Straight-Line Mystery
Aime Michel
1958

Flying Saucers From the Earth's Interior
Raymond Bernard
1958

Futuristic - Shadow of the Atom
A. J. Merak
1958

Homecoming of the Martians
Robert Ernst Dickhoff, Ph.D.
1958

The Night Has A Thousand Saucers
Calvin C. Girvin
1958

Return To Space
W. H. Fear
1958

Rockets vs. Flying Saucers
Edwin Parker
1958

Souvenir of Buck's Spacecraft Convention
Buck Nelson
1958

The Space Ship Returns to the Apple Tree
Louis Slobodkin
1958