Strip cropping for bigger yields
Series: [Agriculture war information series] -- [no. 21]; AWI -- no. 21.
Publisher: U.S. Dept. of Agriculture
Published: 1943
Place of publication: Washington, D.C.]
Language: eng
Subjects: Contour farming; Cover crops; World War, 1939-1945; Pamphlets
Notes: Cover title.

"AWI-21."

"January 1943"--P. 6.