H. P. Powell
2 works in English-language magazines
| Date | Page | Type | Title | Magazine |
|---|---|---|---|---|
| July 1959 | 140|140.1 | Essay | Letter (Astounding, July 1959) | Astounding Science Fiction, July 1959 |
| December 1959 | 120|120.1 | Essay | Letter (Astounding Science Fiction, December 1959) | Astounding Science Fiction, December 1959 |