| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| July 1938 |
|
Astounding Science-Fiction, July 1938 | Street & Smith Publications, Inc. | MAGAZINE | 125 |
| August 2004 |
|
Seventy-Five: The Diamond Anniversary of a Science Fiction Pioneer | Haffner Press | Collection | 203 |
| August 2004 |
|
Seventy-Five: The Diamond Anniversary of a Science Fiction Pioneer | Haffner Press | Collection | 203 |