Cadwalader Ringgold:
Man Who Sold the Moon - Robert A. Heinlein
Cadwalader Ringgold:
Man Who Sold the Moon - Robert A. Heinlein - cover artist Gene Szafran
Cadwalader Ringgold:
Day After Tomorrow [original title Sixth Column]- Robert A. Heinlein - 2nd printing Signet - December 1958
Cadwalader Ringgold:
Revolt in 2100 - Robert A. Heinlein
Cadwalader Ringgold:
Double Star - Robert A. Heinlein
Cadwalader Ringgold:
The Moon is A Harsh Mistress - Robert A. Heinlein
Cadwalader Ringgold:
Puppet Masters - back cover - 1st paperback - Robert A. Heinlein
Cadwalader Ringgold:
Puppet Masters - 1st paperback - Robert A. Heinlein
Cadwalader Ringgold:
Puppet Masters - Robert A. Heinlein - cover artist Gene Szafran
Cadwalader Ringgold:
Friday - Robert A. Heinlein
Cadwalader Ringgold:
Starship Trooper - Robert A. Heinlein
Cadwalader Ringgold:
Podkayne of Mars - Robert A. Heinlein
Cadwalader Ringgold:
Podkayne of Mars - Robert A. Heinlein
Cadwalader Ringgold:
Meanace from Earth - Robert A. Heinlein
Cadwalader Ringgold:
Door into Summer - Robert A. Heinlein - cover by Paul Lehr
Cadwalader Ringgold:
Beyond This Horizon - Robert A. Heinlein
Cadwalader Ringgold:
Glory Road - Robert A. Heinlein
Cadwalader Ringgold:
Orphans of the Sky - Robert A. Heinlein
Cadwalader Ringgold:
Methuselah's Children - Robert Anson Heinlein - 1st Printing - cover by Paul Lehr
Cadwalader Ringgold:
Orphans of the Sky - Robert Anson Heinlein
Cadwalader Ringgold:
Podkayne of Mars - Robert Anson Heinlein
Cadwalader Ringgold:
The Star Beast - Robert Anson Heinlein - cover artist Darrell K. Sweet
Cadwalader Ringgold:
Starship Trooper - Robert Anson Heinlein - cover artist Paul Lehr
Cadwalader Ringgold:
The Past Through Tomorrow Robert A. Heinlein's Future History Stories
Cadwalader Ringgold:
J.O.B. A Comedy Of Justice - Robert Anson Heinlein - cover by Michael Whelan
Cadwalader Ringgold:
Three by Heinlein - The Puppet Masters - Waldo - Magic, Inc - Robert Anson Heinlein - cover by Donald Crews , Ann Crews
Cadwalader Ringgold:
Green Hills of Earth - Robert Anson Heinlein - cover artist Stanley Meltzoff
Cadwalader Ringgold:
Starman Jones - Robert A. Heinlein cover artist Clifford Geary
Cadwalader Ringgold:
Assignment in Eternity - Robert A. Heinlein
Cadwalader Ringgold:
Robert A. Heinlein - Citizen of the Galaxy - cover artist Davis Meltzer
