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
Hospital Station, Ballantine Books, 1970 Ballantine Books, New York September 1970 English Read more about Hospital Station, Ballantine Books, 1970
The Watch Below, Ballantine, 1972 Ballantine Books, New York October 1972 English Read more about The Watch Below, Ballantine, 1972
Lifeboat, Ballantine, 1980 Ballantine Books, New York March 1980 English Read more about Lifeboat, Ballantine, 1980
Major Operation, Ballantine Books, 1974 Ballantine Books, New York October 1974 English Read more about Major Operation, Ballantine Books, 1974
Tomorrow Is Too Far, Ballantine, 1971 Ballantine Books, New York 1971 English Read more about Tomorrow Is Too Far, Ballantine, 1971
