Mystery of the Mind Machine
| First published | August 1940 |
|---|---|
| Type | Short Fiction |
| Length | Novelette |
Publications (3)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| August 1940 | Amazing Stories, August 1940 | Ziff-Davis Publishing Company | MAGAZINE | 100 |
| 1941 | Amazing Stories Quarterly (Reissue), Spring 1941 | Ziff-Davis | MAGAZINE | 100 |14 |
| December 2016 | Novelettes Eligible for the 1941 Retro-Hugos | von Dimpleheimer Press | Anthology | |64 |