| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| March 1950 |
|
Astounding Science Fiction, March 1950 | Street & Smith Publications, Inc. | MAGAZINE | |
| October 1950 |
|
Astounding Science Fiction, October 1950 | Atlas Publishing and Distribution Co. Ltd | MAGAZINE | |
| October 1984 |
|
World Fantasy Convention 1984: Fantasy — an International Genre | Triskell Press | Nonfiction | 96|96.1 |
| 2001 |
|
Foundation, #81 Spring 2001 | The Science Fiction Foundation | MAGAZINE |