Hewitt D. Hackmann
1 work in English-language magazines
| Date | Page | Type | Title | Magazine |
|---|---|---|---|---|
| March 1939 | 162 | Essay | Letter (Astounding Science-Fiction, March 1939): Maybe They, Like Lobsters, Had Haemocyanin Blood? | Astounding Science-Fiction, March 1939 |
1 work in English-language magazines
| Date | Page | Type | Title | Magazine |
|---|---|---|---|---|
| March 1939 | 162 | Essay | Letter (Astounding Science-Fiction, March 1939): Maybe They, Like Lobsters, Had Haemocyanin Blood? | Astounding Science-Fiction, March 1939 |