Official Souvenir Program of the 7th World Science Fiction Convention
| First published | September 1949 |
|---|---|
| Type | Cover Art |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| September 1949 |
|
Official Souvenir Program of the 7th World Science Fiction Convention | Cinvention Committee | Nonfiction | |
| August 1989 |
|
The 47th World Science Fiction Convention: Noreascon Three | Massachusetts Convention Fandom Inc. | Nonfiction | 73 |