Novels

• The Survivors (Gnome Press, 1958) a.k.a. Space Prison (Pyramid Books, 1960)
• The Space Barbarians (Pyramid Books, 1964)

• Beyond Another Sun (Curtis, 1971)

Short Stories

1. "The Gulf Between" in Astounding, October 1953
2. "Mother of Invention" in Astounding, December 1953
3. "The Greater Thing" in Astounding, February 1954
4. "The Cold Equations" in Astounding, August 1954
5. "No Species Alone" in Universe, November 1954
6. "You Created Us" in Fantastic Universe, October 1955
7. "The Barbarians" in If, December 1955
8. "Operation Opera" in Fantasy and Science Fiction, April 1956
9. "Brain Teaser" in If, October 1956
10. "Too Soon to Die" (basis for his novel The Survivors) in Venture, July 1957
11. "The Harvest" in Venture, July 1957
12. "The Last Victory" in If, August 1957
13. "The Nothing Equation" in Amazing, December 1957
14. "The Wild Ones" in Science Fiction Stories, January 1958
15. "My Brother" The Ape" in Amazing, January 1958
16. "Cry From a Far Planet" in Amazing, September 1958
17. "A Place Beyond the Stars" in Super Science Fiction, February 1959
18. "Empathy" in Fantastic, October 1959
19. "The Helpful Hand of God" in Analog, December 1961
20. "...and Devious the Line of Duty" in Analog, December 1962
21. "Desert Execution" in The Man from U.N.C.L.E. Magazine, July 1967
22. "The Gentle Captive" in the original story anthology Signs and Wonders (1972)
23. "We'll Walk Again the Moonlight" in the anthology Crisis (1974)
24. "Backfire" in Ed McBaines 87th Precinct Mystery Magazine, April 1975
25. "The Steel Guardian" in Antaeus, Spring/Summer 1977
26. "Social Blunder" in Amazing, July 1977
27. "Before Willows Ever Walked" in Fantasy and Science Fiction, March 1980