Claassen, P. W. (Peter Walter), 1886–1937
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- pdbooks.info ID: 17699
P. W. (Peter Walter) Claassen Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
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| Laboratory directions in general biology prepared to accompany text book on General biology | 1922 | Author | |  | | |  |    
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