Once Upon a Planet
| First published | December 1948 |
|---|---|
| Type | Short Fiction |
| Length | Short Story |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| December 1948 |
|
Amazing Stories, December 1948 | Ziff-Davis Publishing Company | MAGAZINE | 54 |
| 1949 |
|
Amazing Stories Quarterly (Reissue), Spring 1949 | Ziff-Davis | MAGAZINE | 54 |34 |
| June 2010 | Once Upon a Planet | Project Gutenberg | Chapbook |