Grades for commercial corn
By: by J.W.T. Duvel
Series: Bulletin of the U.S. Department of Agriculture -- no. 168; Bulletin of the U.S. Department of Agriculture -- no. 168.
Publisher: U.S. Dept. of Agriculture
Published: 1915
Place of publication: Washington, D.C
Language: eng
Number of pages: 11
Subjects: Corn; Grading
Notes: Caption title.

"July 15, 1915."