Publications (4)
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| August 1942 |
|
Astounding Science-Fiction, August 1942 | Street & Smith Publications, Inc. | MAGAZINE | 54 |
| March 1953 |
|
The Robot and the Man | Gnome Press | Anthology | 67 |
| 1954 |
|
The Robot and the Man | Grayson & Grayson | Anthology | |
| 1961 |
|
Ahead of Time | Four Square Books | Collection | 146 |