Summer fallow at Ardmore, S. Dak
By: by Oscar R. Mathews and Verner I. Clark
Contributors: Clark, Verner I. (Verner Ivan), 1891-
Series: Circular / United States Department of Agriculture -- no. 213; Circular (United States. Dept. of Agriculture) -- no. 213.
Publisher: U.S. Dept. of Agriculture
Published: 1932
Place of publication: Washington, D.C
Language: eng
Number of pages: 15
Subjects: Fallowing
Notes: Caption title.

"Contribution from Bureau of Plant Industry."