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5,680 entries, with autho r index, a nd subject a nd place index
Abbreviations of titles of periodicals: p. [367]-387
",Emphasis has been laid ... on the social a nd economic aspects of the disease a nd the effo r ts to control it, rather than on the biology of the parasite ... The volume contains almost all of the references that can be verified in the United States.",--Pref
xxvi, 417 p. 23 cm