| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| August 1968 |
|
If, August 1968 | Galaxy Publishing Corporation | MAGAZINE | |
| August 2004 |
|
Seventy-Five: The Diamond Anniversary of a Science Fiction Pioneer | Haffner Press | Collection | 469 |
| August 2004 |
|
Seventy-Five: The Diamond Anniversary of a Science Fiction Pioneer | Haffner Press | Collection | 469 |