Letter (Astounding Stories, August 1937): Problem in Projection.
| First published | August 1937 |
|---|---|
| Type | Essay |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| August 1937 |
|
Astounding Stories, August 1937 | Street & Smith Publications, Inc. | MAGAZINE | 158|158.1 |