| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| February 1961 |
|
Analog Science Fact -> Fiction, February 1961 | Street & Smith Publications, Inc. | MAGAZINE | 20 |
| June 1961 |
|
Analog Science Fact -> Fiction, June 1961 | Atlas Publishing and Distribution Co. Ltd | MAGAZINE | 22 |