Factors affecing the usefulness of honeybees in pollination
By: by Geo. H. Vansell
Edition: Slightly rev. June 1947.
Series: Circular / United States Department of Agriculture -- no. 650; Circular (United States. Dept. of Agriculture) -- no. 650.
Publisher: U.S. Dept. of Agriculture
Published: 1947
Place of publication: Washington, D.C
Language: eng
Number of pages: 31
Subjects: Honeybee; Pollination by insects
Notes: Caption title.

Bibliography: p. 31.