J. R. Penner
2 works in English-language magazines
| Date | Page | Type | Title | Magazine |
|---|---|---|---|---|
| October 1930 | 132|132.1 | Essay | Letter (Astounding Stories of Super-Science, October 1930) | Astounding Stories of Super-Science, October 1930 |
| September 1932 | 141|141.2 | Essay | Letter (Astounding Stories, September 1932): Yessir | Astounding Stories, September 1932 |