When Harlie Was One by David Gerrold 1975 Sci-Fi Ballantine Paperback Book

Tomorrow Times Seven by Frederik Pohl-Ballantine Paperback Original-1959

Drunkard's Walk by Frederik Pohl - Ballantine Books Paperback 1973

The Demon in the Mirror by Andrew Offutt & Richard Lyon paperback B-1

Demon in the Mirror by Andrew J. Offutt & Richard Lyon 1st Pocket Books PB 1978

1973 Daw Books #38 James H Schmitz THE LION GAME

Demon in the Mirror Andrew J. Offutt & Richard K. Lyon Pocket Paperback

Gateway by Frederik Pohl - Book Club Edition Hardcover 1977