Ewing, H. E. (Henry Ellsworth), 1883–
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- pdbooks.info ID: 59902
H. E. (Henry Ellsworth) Ewing Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
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| The fleas of North America | 1943 | Author | |  | |  | | 
| |
| A manual of external parasites | 1929 | Author | | | | | |
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