Letter (Weird Tales, October 1934): Constant Improvement
| First published | October 1934 |
|---|---|
| Type | Essay |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| October 1934 |
|
Weird Tales, October 1934 | Popular Fiction Publishing Co. | MAGAZINE | 524|524.1 |
| October 2014 |
|
Weird Tales, October 1934 | Girasol Collectables | Anthology | 524|524.1 |
| 2019 | Weird Tales (disc 3, part 2) | Anthology | 524|32404524.1 |