| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| July 1931 |
|
Astounding Stories, July 1931 | The Clayton Magazines, Inc. | MAGAZINE | |
| September 1999 |
|
Wolves of Darkness | Haffner Press | Collection | fep |
| August 2004 |
|
Seventy-Five: The Diamond Anniversary of a Science Fiction Pioneer | Haffner Press | Collection | 365 |
| August 2004 |
|
Seventy-Five: The Diamond Anniversary of a Science Fiction Pioneer | Haffner Press | Collection | 365 |
| February 2010 | Astounding Stories, July 1931 | Project Gutenberg | Anthology |