OCTO Spectrum by Gardner, Doug

Jason & Medeia, by John Gardner (1975 Ballantine 1st paperback ed.)

Mathematical Puzzles and Diversions - Martin Gardner - 1966 Pelican Paperback

Grendel by John Gardner, Illustrated Paperback, Ballantine Books 1972

Lisa Gardner Still See You Everywhere Paperback

On to Kilimanjaro Brian Gardner, 1964, Vintage Paperback

OCTO Spectrum by Doug Gardner: New

Erle Stanley Gardner Doug Selby The D.A. Series - Choose Your Title Fair-VG #1