Letter (Astounding, April 1944): Guess Koolos Will Never Rule the Planet!
| First published | April 1944 |
|---|---|
| Type | Essay |
| Series | Letters: L. Sprague de Camp |
Publications (1)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| April 1944 | Astounding Science Fiction, April 1944 | Street & Smith Publications, Inc. | MAGAZINE | 177 |