Letter (Captain Future, Fall 1940): Calling All Futuremen
| First published | October 1940 |
|---|---|
| Type | Essay |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| October 1940 |
|
Captain Future, Fall 1940 | Better Publications, Inc. | MAGAZINE | 122|122.1 |
| July 2009 |
|
The Collected Captain Future: Wizard of Science, Volume One | Haffner Press | Omnibus | 498 |
| July 2018 |
|
Captain Future, Fall 1940 | Adventure House | Anthology | 122|122.1 |