TY - BOOK AU - Pratt,Harry D. TI - Relation of plants to malaria control in Puerto Rico T2 - U. S. Public Health Service. Public health reports. Supplement AV - RA11 .B177 no. 200 U1 - 614.53 PY - 1948///] CY - [Washington PB - U.S. Govt. Print. Off. KW - Malaria KW - Puerto Rico KW - Botany KW - Aquatic plants N1 - "References": p. 38 ER -