Eifrig, Charles William Gustave, 1871–
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2446129A
- pdbooks.info ID: 51680
Charles William Gustave Eifrig Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
| ||||||
| Mammals | 1928 | Author | |  | |  | | 
| |
| Reptiles, amphibians, and fishes | 1930 | Author | | | | | | ||