Originally published as by "W. Norbert" in Technical Engineering News, April 1952
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| November 1953 |
|
Crossroads in Time | Permabooks | Anthology | 299 |
| June 1962 |
|
Great Science Fiction by Scientists | Collier Books | Anthology | 297 |
| June 1962 |
|
Great Science Fiction by Scientists | Collier Books | Anthology | 297 |
| June 1962 |
|
Great Science Fiction by Scientists | Collier Books | Anthology | 297 |
| 1966 | Great Science Fiction by Scientists | Collier Books | Anthology | 297 | |
| 1967 |
|
Great Science Fiction by Scientists | Collier Books | Anthology | 297 |
| 1968 |
|
Great Science Fiction by Scientists | Collier Books | Anthology | 297 |
| 1968 |
|
Encrucijadas del Espacio | Editorial Molino | Anthology | |
| 1970 |
|
Great Science Fiction by Scientists | Collier Books | Anthology | 297 |
| 1973 |
|
Great Science Fiction by Scientists | Collier Books | Anthology | 297 |
| 1974 |
|
Galaktika 8: Tudományos-fantasztikus antológia | Kozmosz Könyvek | Anthology | 45 |
| 1977 | Introductory Psychology Through Science Fiction | Rand McNally College Publishing Co. | Anthology | 125 | |
| 1978 |
|
Great Science Fiction by Scientists | Collier Books | Anthology | 297 |
| June 1990 |
|
Millemondiestate 1990: 1 Romanzo breve e 15 Racconti | Mondadori | Anthology | 85 |
| 1997 |
|
Опасни светове | Офир | Anthology | 143 |