18th World Science Fiction Convention: Pittcon
| First published | September 1960 |
|---|---|
| Type | Cover Art |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| September 1960 |
|
18th World Science Fiction Convention: Pittcon | Pittcon Committee | Nonfiction | |
| August 1989 |
|
The 47th World Science Fiction Convention: Noreascon Three | Massachusetts Convention Fandom Inc. | Nonfiction | 87 |