| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| September 1952 |
|
Galaxy Science Fiction, September 1952 | Galaxy Publishing Corporation | MAGAZINE | 49 |
| February 1953 |
|
Galaxy Science Fiction, Vol. 3 No. 2 | Thorpe & Porter | MAGAZINE | 49 |
| December 2015 | The Snowball Effect | Project Gutenberg | Chapbook |