| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| September 1959 |
|
The Magazine of Fantasy and Science Fiction, September 1959 | Mercury Press, Inc. | MAGAZINE | 86 |
| May 1960 |
|
The Magazine of Fantasy and Science Fiction, May 1960 | Atlas Publishing and Distribution Co. Ltd | MAGAZINE | 57 |
| 1962 |
|
The Mathematical Magpie | Simon & Schuster | Anthology | 290 |
| May 1997 |
|
The Mathematical Magpie | Copernicus | Anthology |