American fertilizers
By: [by P.E. Howard].
Series: Miscellaneous publication / United States Department of Agriculture -- no. 143; Miscellaneous publication (United States. Dept. of Agriculture) -- no. 143.
Publisher: U.S. Dept. of Agriculture
Published: 1932
Place of publication: Washington, D.C
Language: eng
Number of pages: 24
Subjects: Fertilizer industry -- United States
Notes: Cover title.

"Issued May, 1932."