Letter (Thrilling Wonder Stories, February 1938): Scientific Activity Wanted
| First published | February 1938 |
|---|---|
| Type | Essay |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| February 1938 |
|
Thrilling Wonder Stories, February 1938 | Better Publications, Inc. | MAGAZINE | 121 |
| February 2017 |
|
Thrilling Wonder Stories, February 1938 | Adventure House | Anthology | 121 |