Microscopical examination of flour
By: by George L. Keenan
Series: Bulletin / United States Department of Agriculture -- no. 839; Bulletin of the U.S. Department of Agriculture -- no. 839
Publisher: U.S. Dept. of Agriculture
Published: 1920
Place of publication: Washington, D.C
Language: eng
Number of pages: 32
Subjects: Flour; Microbiology
Notes: Caption title.

"April 23, 1920."

Bibliography: p. 32.