Graphic analysis in agricultural economics.
- Washington, D.C. : U.S. Dept. of Agriculture, Agricultural Marketing Service, 1957.
- 69 p. : ill. ; 26 cm.
- Agriculture handbook / United States Department of Agriculture ; no. 128 .
- Agriculture handbook (United States. Department of Agriculture) ; no. 128. .
Cover title. Supersedes Graphic analysis in economic research, Agriculture handbook no. 84, issued in 1955.