Sacbrood
By: by G.F. White.
Series: Bulletin / United States Department of Agriculture -- no. 431.; Bulletin of the U.S. Department of Agriculture -- no. 431.
Publisher: U.S. Dept. of Agriculture
Published: 1917
Place of publication: Washington, D.C
Language: eng
Number of pages: 55
Subjects: Bees -- Diseases
Notes: Caption title.

"February 9, 1917."

"Professional paper."

Bibliography: p. 53-54.