Caspar Hasselriis papers 1906-1973

No Cover Image
Main Author: Hasselriis, Caspar
Format: Manuscript
Language: Danish
Subjects: Biological pest control agents industry--United States.
Danish literature--United States.
Pests--Biological control--Denmark.
Pests--Biological control--United States.
Pests--Law and legislation--United States.
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