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1
Snail hosts of schistosomiasis and other snail-transmitted diseases in tropical America : a manual /
by Malek, Emile A. (Emile Abdel), 1922-1996
Washington, D.C., U.S.A. : Pan American Health Organization, Pan American Sanitary Bureau, Regional Office of the World Health Organization, 1985
Washington, D.C., U.S.A. : Pan American Health Organization, Pan American Sanitary Bureau, Regional Office of the World Health Organization, 1985
Book