Organic dependence and disease: their origin and significance Clarke, John Mason, 1857-1925 creator text book New Haven Yale university press 1921 1921
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ENG Parasitism Symbiosis QH541 .C5 New York State Museum bulletin, no. 221-222 https://www.biodiversitylibrary.org/bibliography/19803 1014575 21014940 10.5962/bhl.title.19803