The Goblin Reservation, by Clifford D. Simak (from hauk sven)
sci-fi cover art
Highway of Eternity, by Clifford D. Simak (from hauk sven)
Infinite dreams, by Joe Haldeman. Avon Books, 1978. Publishers of Bard, Camelot and Discus Books, version 1 (from hauk sven)