| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| May 1930 |
|
Astounding Stories of Super-Science, May 1930 | Publishers' Fiscal Corp | MAGAZINE | 166 |
| August 2009 | Astounding Stories of Super-Science, May 1930 | Project Gutenberg | Anthology | 166 | |
| November 2013 |
|
Astounding Stories of Super-Science, May 1930 | LibriVox | Anthology | |2 |
| March 2015 |
|
Astounding Stories, May 1930 | Sci-Fi Publishing | Anthology | |166 |