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A Guide for the Identification of the Snail Intermediate Hosts of Schistosomiasis in the Americas

by the Pan American Health Organization ix + 122 pages, illustrated, paperbound. Pan American Sanitary Bureau, Regional Office of the World Health Organization, 525 Twenty-third Street N. W., Washington, D. C. 20037. 1968. Free

E. H. Michelson
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W. R. Jobin
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E. H. Michelson
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