| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| January 1972 |
|
Report on Planet Three and Other Speculations | Harper & Row | Nonfiction | 230 |
| 1973 |
|
Report on Planet Three and Other Speculations | Corgi Books / Transworld Publishers | Nonfiction | 236 |
| 1975 |
|
Report on Planet Three and Other Speculations | Corgi | Nonfiction | 236 |
| June 1982 |
|
Report on Planet Three and Other Speculations | Signet / New American Library | Nonfiction | 207 |
| 1984 |
|
Report on Planet Three and Other Speculations | Pan Books | Nonfiction | 236 |
| 1985 |
|
Berichte über einen kleinen blauen Planeten | Bastei Lübbe | Nonfiction | 260 |
| March 1985 | Report on Planet Three and Other Speculations | Berkley Books | Nonfiction | 226 |