Star Surgeon, Ballantine, 1968 Ballantine Books, New York May 1968 English Read more about Star Surgeon, Ballantine, 1968
Star Surgeon, Ballantine, 1963 Ballantine Books, New York March 1963 English Read more about Star Surgeon, Ballantine, 1963
Lifeboat, Ballantine, 1972 Ballantine Books, New York October 1972 English Read more about Lifeboat, Ballantine, 1972
Deadly Litter, Ballantine, 1981 Ballantine Books, New York September 1981 English Read more about Deadly Litter, Ballantine, 1981
Major Operation, Ballantine Ballantine Books, New York February 1971 English Read more about Major Operation, Ballantine
The Aliens Among Us, Ballantine, 1969 Ballantine Books, New York April 1969 English Read more about The Aliens Among Us, Ballantine, 1969
The Dream Millennium, Ballantine Books, 1974 Ballantine Books, New York 14 June 1974 English Read more about The Dream Millennium, Ballantine Books, 1974
Deadly Litter, Ballantine Ballantine Books, New York September 1970 English Read more about Deadly Litter, Ballantine
Deadly Litter, Ballantine, 1964 Ballantine Books, New York October 1964 English Read more about Deadly Litter, Ballantine, 1964
