Pickering sprays
By: by F.C. Cook
Series: Bulletin / United States Department of Agriculture -- no. 866; Bulletin of the U.S. Department of Agriculture -- no. 866.
Publisher: U.S. Dept. of Agriculture
Published: 1920
Place of publication: Washington, D.C
Language: eng
Number of pages: 47
Subjects: Spraying and dusting in agriculture; Pesticides
Description: Pp. 44.
Notes: Caption title.

"August 24, 1920."

Bibliography: p. 46-47.