| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| November 1973 |
|
The Cosmic Connection: An Extraterrestrial Perspective | Anchor Press / Doubleday | Nonfiction | 227 |
| 1975 |
|
The Cosmic Connection: An Extraterrestrial Perspective | Coronet | Nonfiction | 227 |