| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| December 1959 |
|
Astounding Science Fiction, December 1959 | Street & Smith Publications, Inc. | MAGAZINE | 155|155.2 |
| March 1960 |
|
Astounding Science Fiction, March 1960 | Atlas Publishing and Distribution Co. Ltd | MAGAZINE | 124|124.2 |
| March 1960 |
|
Astounding Science Fiction, March 1960 | Atlas Publishing and Distribution Co. Ltd | MAGAZINE | 124|124.2 |