For Your Information: The 7-Cornered Polygon
| First published | March 1954 |
|---|---|
| Type | Essay |
| Series | For Your Information |
Publications (2)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| March 1954 | Galaxy Science Fiction, March 1954 | Galaxy Publishing Corporation | MAGAZINE | 66 |
| August 1954 | Galaxy Science Fiction, No. 17 | Strato Publications | MAGAZINE | 61 |