Sources and available supplies of commercial fertilizers
By: by C.H. Kunsman.
Series: Miscellaneous publication / United States Department of Agriculture -- no. 400; Miscellaneous publication (United States. Dept. of Agriculture) -- no. 400.
Publisher: U.S. Dept. of Agriculture
Published: 1940
Place of publication: Washington, D.C
Language: eng
Number of pages: 20
Subjects: Fertilizers -- United States.; Fertilizer industry -- United States.
Notes: Caption title.

"December, 1940."