Survey of the fertilizer industry
By: by P.E. Howard
Series: Circular / United States. Dept. of Agriculture -- no. 129; Circular (United States. Dept. of Agriculture) -- no. 129.
Publisher: U.S. Dept. of Agriculture
Published: 1931
Place of publication: Washington, D.C
Language: eng
Number of pages: 23
Subjects: Fertilizer industry
Notes: Caption title.

"Contribution from Bureau of Chemistry and Soils".

Includes bibliographical references.