Insects active all the year in homes with modern heating United States. Department of Agriculture. contributor United States. Department of Agriculture. Office of Information. contributor United States. Department of Agriculture. Press Service. contributor United States. Extension Service. contributor text book [Washington, D.C.] U.S.D.A. Press Service, Office of Information, and Extension Service 1940 1940
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ENG Control Insect pests Homemaker news, no. 395 https://www.biodiversitylibrary.org/bibliography/84827 879381947 10.5962/bhl.title.84827 AGL