Letter (Astounding, August 1949): Another Free-Fall Effect I Hadn't Thought of!
| First published | August 1949 |
|---|---|
| Type | Essay |
Publications (1)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| August 1949 | Astounding Science Fiction, August 1949 | Street & Smith Publications, Inc. | MAGAZINE | 162|162.2 |