The Moon is Hell - Ace, January 1973

The Black Star Passes - August 1972

Martin Caidin

The Messiah Stone - Baen, 1st printing April 1986, art by David Mattingly, binding is torn at bottom of spine

Exit Earth - Baen, 1st printing April 1987

Paul Cook

Halo - Bantam, October 1986, art by John Hamagami