Mortals and Monsters by Lester Del Ray Tandem Books 1967 Vintage Science Fiction

Mortals and Monsters, by Lester del Rey - UK paperback, Tandem Books, 1967

Tunnel Through Time Lester Del Rey First Print 1967 PB Scholastic Book Services

The Best of C. L. Moore Edited by Lester Del Rey Paperback 1975 Sci-Fi Vintage

MORTALS AND MONSTERS by Lester Del Rey, Ballantine Paperback

Marooned on Mars Lester Del Rey PB Paperback Library (1967)

Mortals and Monsters by Lester Del Rey Ballantine Books 1st 1965 Good

Mortals and Monsters by Lester Del Rey 1st Edition First Printing paperback 1965