Letter (Astounding, November 1939):
| First published | November 1939 |
|---|---|
| Type | Essay |
Publications (1)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| November 1939 | Astounding Science-Fiction, November 1939 | Street & Smith Publications, Inc. | MAGAZINE | 159|159.2 |
| First published | November 1939 |
|---|---|
| Type | Essay |
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| November 1939 | Astounding Science-Fiction, November 1939 | Street & Smith Publications, Inc. | MAGAZINE | 159|159.2 |