The Problems of Geology No. 1
| First published | September 1947 |
|---|---|
| Type | Essay |
Publications (2)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| September 1947 | Amazing Stories, September 1947 | Ziff-Davis Publishing Company | MAGAZINE | 89 |
| 1948 | Amazing Stories Quarterly (Reissue), Spring 1948 | Ziff-Davis | MAGAZINE | 89 |6 |