Cadwalader Ringgold:
Science-Adventure Books - Tombot! by Don White & World Held Captive by Bryon Berry - cover artist Kelly Freas
Cadwalader Ringgold:
Science-Adventure Books - The Wanton of Argus by Kilian Houston Brunner (John Brunner) & Mission to Marakee by Bryan Berry - cover artist Kelly Freas
Cadwalader Ringgold:
Science-Adventure Books - Silent Victory by Poul Anderson & Ballroom of the Skies by John D. MacDonald - cover artist Kelly Freas
Cadwalader Ringgold:
Science-Adventure Books - Beyond this Horizon by Anson Mc Donald (Robert A. Heinlein) & The Magellanics by Alfred Coppel - cover artist Alan Anderson
Cadwalader Ringgold:
Science-Adventure Books - Sargasso of Lost Cities by James Blish & Survivor of Mars by Vargo Statten - cover artist Kelly Freas
Cadwalader Ringgold:
Science-Adventure Books - The Cructars and Coming! by Paul Lawrence Payne & Minions of the Moon by William Grey Beyer - cover artist Alan Anderson
Cadwalader Ringgold:
Science-Adventure Books - The Time Machine by H.G. Wells & The Tritonian Ring by Sprague de Camp - cover artist Alan Anderson
Cadwalader Ringgold:
Science-Adventure Books The Outcasts of Venus by Anaximander Powell & The Humanoids by Jack Williamson - cover artist Alan Anderson
Cadwalader Ringgold:
Science-Adventure Books - Sword of Xota by James Blish & Citadel in Space by Neil R. Jones - cover artist Alan Anderson
Cadwalader Ringgold:
Two Complete Science Adventure Books No. 2 Spring - Star Kings by Edmond Hamilton and Seeker of the Sphinx by Arthur C. Clarke cover artist Allen Anderson