Publications (5)
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1976 |
|
The Planet That Wasn't | Doubleday | Nonfiction | 99 |
| January 1976 |
|
The Magazine of Fantasy and Science Fiction, January 1976 | Mercury Press, Inc. | MAGAZINE | 90 |
| 1977 |
|
The Planet That Wasn't | Sphere Books | Nonfiction | 117 |
| December 1977 |
|
The Planet That Wasn't | Discus / Avon | Nonfiction | 120 |
| 1979 |
|
The Planet That Wasn't | Sphere | Nonfiction | 117 |