Ballantine Books · Foxacre Press · John Wiley & Sons · Writers Digest Books
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Aliens and Alien Societies | 978-0-89879-706-0 | 1996 | |
| Analog's Children of the future | 978-0-385-27778-5 | 1982 | |
| Islands in the Sky: Bold New Ideas for Colonizing Space - From the Supersonic Skyhook to the Negative Matter Space Drive | 978-0-471-13561-6 | 1996 | Robert Zubrin |
| Newton and the Quasi-Apple | 978-0-9709711-3-5 | 2001 | Frank Kelly Freas |
| Roads Not Taken | 978-0-345-42194-4 | 1998 | Gardner Dozois |