PSTALEMATE by Lester Del Rey 1ST BERKLEY PRINTING 1973 Science Fiction

VTG 1966 Tunnel Through Time by Lester del Rey 1st Ed 4th Printing PB Unread

Attack From Atlantis Lester Del Rey 1st Ballantine Printing 1978 Sci-Fi PB

Gods and Golems by Lester Del Rey 1973 Ballantine 1st Printing Paperback

GOOD-Marooned on Mars by Lester Del Rey - Vintage PB Book 1st Printing

PSTALEMATE by Lester Del Rey -- 1st Paperback Printing

MOON OF MUTINY Lester Del Rey Signet 1969 1st Printing PB Sci-Fi