Sacbrood, a disease of bees.
By: By G. F. White ...
Series: United States. Dept. of agriculture. Bureau of entomology. Circular no. 169; Circular (United States. Bureau of Entomology) -- no. 169.
Publisher: Govt. print. off.
Published: 1913
Place of publication: Washington
Language: eng
Subjects: Bees -- Diseases