| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| September 1950 |
|
Astounding Science Fiction, September 1950 | Street & Smith Publications, Inc. | MAGAZINE | 121 |
| 1983 |
|
The Fringe of the Unknown | Prometheus Books | Nonfiction | 173 |
| 1983 |
|
The Fringe of the Unknown | Prometheus Books | Nonfiction | 173 |