Graphic analysis in agricultural economics. - Waugh, Frederick V. (Frederick Vail), 1898-1974. (Washington, D.C. : U.S. Dept. of Agriculture, Agricultural Marketing Service, 1957)
Cover title.
Supersedes Graphic analysis in economic research, Agriculture handbook no. 84, issued in 1955.
Includes bibliographical references.
Keywords: Agriculture -- Economic aspects -- Research; Graphic methods; Agriculture -- Statistics