USDA tillage laboratory aims to improve machines, methods
Series: Picture story -- no. 25; Picture story (United States. Department of Agriculture) -- no. 25.
Publisher: U.S. Dept. of Agriculture, Office of Information, Press Service
Published: 1946
Place of publication: Washington, D.C
Language: eng
Subjects: Tillage; Plowing; Methods; Machinery
Notes: Caption title.

"November 18, 1946."