Sidney Mack
1 work in English-language magazines
| Date | Page | Type | Title | Magazine |
|---|---|---|---|---|
| July 1930 | 135|135.4 | Essay | Letter (Astounding Stories of Super-Science, July 1930) | Astounding Stories of Super-Science, July 1930 |
1 work in English-language magazines
| Date | Page | Type | Title | Magazine |
|---|---|---|---|---|
| July 1930 | 135|135.4 | Essay | Letter (Astounding Stories of Super-Science, July 1930) | Astounding Stories of Super-Science, July 1930 |