Hahn, Henry H.
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2424179A
- pdbooks.info ID: 12334
Henry H. Hahn Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
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| Projects in observation and practice teaching for high schools, normal schools and teachers' colleges | 1922 | Author | |  | |  | |    
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