The Martian Sphinx
| First published | 1965 |
|---|---|
| Publisher | Ace Books |
| Format | Paperback |
| Type | Novel |
| Catalog ID | F-320 |
| Cover art | John Schoenherr |
| Pages | 149 |
| Price | $0.40 |
©1965, no other statement of publication or printing on copyright page
Month of publication from Jad Smith's John Brunner biography
"First Book Publication" on cover.
Cover artist is not credited, no visible signature [source for Schoenherr is not cited]
The interior art is not credited; has Gaughan's initials "JG"
No ISBN on record — searching by title and author.