Letter (Astounding Stories, April 1936): Thought-Variants? Coming!
| First published | April 1936 |
|---|---|
| Type | Essay |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| April 1936 |
|
Astounding Stories, April 1936 | Street & Smith Publications, Inc. | MAGAZINE | 154|154.1 |