Cadwalader Ringgold:
Omnivore - Piers Anthony - cover artist Bill Maughan
Cadwalader Ringgold:
Man in the Maze - Robert Silverberg - cover artist Michael Presley
Cadwalader Ringgold:
Strange Relations - Philip Jose Farmer
Cadwalader Ringgold:
Inside Outside - Philip Jose Farmer
Cadwalader Ringgold:
Syndic - C.M. Kornbluth
Cadwalader Ringgold:
Judgement of Eve - Edgar Pangborn
Cadwalader Ringgold:
Rogue Moon - Algis Budrys
Cadwalader Ringgold:
Black Easter - The Devils Day book 1 - James Blish - cover artist unknown
Cadwalader Ringgold:
A Mirror for Observers - Edgar Pangborn - cover artist Stanislaw Fernandes
Cadwalader Ringgold:
Great Explosion - Eric Frank Russell - cover artist Chris Foss
Cadwalader Ringgold:
Reproductive System - John T. Sladek - cover artist - Jack Gaughan
Cadwalader Ringgold:
Space-Born - E.C. Tubb - cover artist Vicente Segrelles
Cadwalader Ringgold:
The Humanoids - Jack Williamson - cover artist Michael Presley
Cadwalader Ringgold:
No Blade of Grass - John Christopher - cover artist Michael Presley
Cadwalader Ringgold:
City Under the Sea (aka Green Destiny) - Kenneth Bulmer - cover artist Bill Maugham
Cadwalader Ringgold:
Bill, The Galactic Hero - Harry Harrison - cover artist Michael Gross
Cadwalader Ringgold:
Ultimate World - Hugo Gernsback - cover artist Vincent DiFate
Cadwalader Ringgold:
The Iron Dream - Norman Spinrad