Koehler, John Henry, 1866–
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2390864A
- pdbooks.info ID: 141259
John Henry Koehler Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
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| Ginseng and goldenseal growers' handbook | 1912 | Author | |  | |  | |    
| |
| Ginseng- und goldensealzüchter's handbuch | 1912 | Author | | | | | | ||