| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| September 1960 |
|
18th World Science Fiction Convention: Pittcon | Pittcon Committee | Nonfiction | 44 |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| September 1960 |
|
18th World Science Fiction Convention: Pittcon | Pittcon Committee | Nonfiction | 44 |