| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| October 1961 |
|
Amazing Stories, October 1961 | Ziff-Davis Publishing Company | MAGAZINE | 48 |
| June 1969 |
|
The Most Thrilling Science Fiction Ever Told No. 13, Summer 1969 | Ultimate Publishing Co., Inc. | MAGAZINE | 121 |
| March 2024 | The Wellsprings of Space | Project Gutenberg | Chapbook |