Letter (Planet Stories: Winter 1941-42): It's a System
| First published | November 1941 |
|---|---|
| Type | Essay |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| November 1941 |
|
Planet Stories, Winter 1941 | Love Romances Publishing | MAGAZINE | 122 |
| August 2010 |
|
Planet Stories, Winter 1941 | Adventure House | Anthology | 122 |