Dr. John D. Clark
Pseudonym of John D. Clark, Ph.D.
3 works in English-language magazines
| Date | Page | Type | Title | Magazine |
|---|---|---|---|---|
| February 1937 | 150|150.1 | Essay | Letter (Astounding Stories, February 1937): About Atlantis. | Astounding Stories, February 1937 |
| January 1939 | 141 | Essay | Letter (Amazing Stories, January 1939): The Rocket Ship | Amazing Stories, January 1939 |
| November 1960 | 173 | Essay | Letter (Analog, November 1960) | Analog Science Fact -> Fiction, November 1960 |