Letter (Astounding, May 1942): It's a Promise!
| First published | May 1942 |
|---|---|
| Type | Essay |
| Series | Letters: L. Sprague de Camp |
Publications (1)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| May 1942 | Astounding Science-Fiction, May 1942 | Street & Smith Publications, Inc. | MAGAZINE | 106|106.1 |