The occurrence of bee diseases in the United States. (Preliminary report.) Phillips, Everett Franklin, 1878-1951 creator United States. Bureau of Entomology. contributor United States. Department of Agriculture. contributor text book Washington, D.C U.S. Dept. of Agriculture, Bureau of Entomology 1911 1911
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ENG Circular No. 138. "Issued May 10, 1911." At head of title: United States Department of Agriculture, Bureau of Entomology. State summaries. pp. 3-22. Publications of the Department of Agriculture on bee diseases. pp. 24. Table. Prevalence of brood diseases in the United States. pp. 25. Bees Diseases Honeybee Circular (United States. Bureau of Entomology), no. 138 https://www.biodiversitylibrary.org/bibliography/63403 811136107 10.5962/bhl.title.63403 LHL