| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| January 1940 |
|
Fantascience Digest, January–February 1940 | Robert A. Madle | MAGAZINE | 20 |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| January 1940 |
|
Fantascience Digest, January–February 1940 | Robert A. Madle | MAGAZINE | 20 |