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Economic Loss to the People of the United States Through Insects that Carry Disease

Austin Winfield MorrillLeland Ossian HowardWarren Elmer HindsUnited States. Bureau of EntomologyWilliam Dwight PierceWilliam Walter Yothers

出版	U.S. Department of Agriculture, Bureau of Entomology, 1908
URL	http://books.google.com.hk/books?id=P0wiAQAAMAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN