Cadwalader Ringgold:
Ensign Flandry - Poul Anderson
Cadwalader Ringgold:
People of the Wind - Poul Anderson - cover artist Fernando Fernandez
Cadwalader Ringgold:
Guardians of Time - Poul Anderson - cover artist Richard Powers
Cadwalader Ringgold:
Guardians of Time - Poul Anderson - cover artist Paul Lehr
Cadwalader Ringgold:
Rebel Worlds - Poul Anderson
Cadwalader Ringgold:
No World of Their Own - Poul Anderson
Cadwalader Ringgold:
Enemy Stars - Poul Anderson
Cadwalader Ringgold:
Armies of Elfland - Poul Anderson
Cadwalader Ringgold:
Makeshift Rocket - Poul Anderson
Cadwalader Ringgold:
Un Man and other Novellas - Poul Anderson
Cadwalader Ringgold:
Snows of Ganymede - Poul Anderson - cover artist Ed Valigursky - 1st edition
Cadwalader Ringgold:
War of the Wing-Men - Poul Anderson - cover artist Ed Emshwiller - 1st Book publication
Cadwalader Ringgold:
Time and Stars - Poul Anderson - cover artist Tom Chibbaro
Cadwalader Ringgold:
7 Conquest - Poul Anderson - cover artist Emanuel Schongut
Cadwalader Ringgold:
Three Hearts and Three Lions - Poul Anderson - cover artist Susan Shay Cullins
Cadwalader Ringgold:
Knight of Ghosts and Shadows - Poul Anderson - cover artist Chet Jeziersk
Cadwalader Ringgold:
Mirkieim - Poul Anderson
Cadwalader Ringgold:
Corridors of Time - Poul Anderson - cover artist Tom Chibbaro
Cadwalader Ringgold:
Nebula Award Stories Four - Poul Anderson, editor
Cadwalader Ringgold:
A Stone In Heaven - Poul Anderson
Cadwalader Ringgold:
A Midsummer Tempest - Poul Anderson
Cadwalader Ringgold:
Dance From Atlantis - Poul Anderson - cover artist Frank Frazetta
Cadwalader Ringgold:
Day of Their Return - Poul Anderson cover artist Richard V. Corben
Cadwalader Ringgold:
Genesis - Poul Anderson - cover artist Jim Burns
Cadwalader Ringgold:
Fire Time - Poul Anderson - cover artist Gary Friedman
Cadwalader Ringgold:
Star Fox - by Poul Anderson cover artist Johannes Regn
Cadwalader Ringgold:
Yonder - Seven Tales of the Space Age read by author Poul Anderson
Cadwalader Ringgold:
Poul Anderson - Harvest of Stars - cover artist Vincent Di Fate
Cadwalader Ringgold:
Poul Anderson - The Time Patrol - cover artist Tony Roberts
Cadwalader Ringgold:
Poul Anderson - The High Crusade - cover artist Jack Woolheiser
