Letter (Astounding, February 1939): You'll Find Hubbard in the April UNKNOWN with a Fantasy Up to the Standard Russel Sets in the March Issue. Vincent's "The Morons" Is Coming—Delayed by the Changes.
| First published | February 1939 |
|---|---|
| Type | Essay |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| February 1939 |
|
Astounding Science-Fiction, February 1939 | Street & Smith Publications, Inc. | MAGAZINE | 159|159.2 |