The Tides and Gravity
| First published | September 1949 |
|---|---|
| Type | Essay |
Publications (2)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| September 1949 | Amazing Stories, September 1949 | Ziff-Davis Publishing Company | MAGAZINE | 142 |
| 1950 | Amazing Stories Quarterly (Reissue), Spring 1950 | Ziff-Davis | MAGAZINE | 142 |11 |