Letter (Astounding, April 1940): Heinlein Has Several More Yarns Coming Up.
| First published | April 1940 |
|---|---|
| Type | Essay |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| April 1940 |
|
Astounding Science-Fiction, April 1940 | Street & Smith Publications, Inc. | MAGAZINE | 161 |