00993cam a22002771 4500 agr67000094 DLC 20260227111026.0 780501s1968 dcu f000 0 eng agr67000094 (OCoLC)3852004 DLC IPAR DLC premarc HD1425 .W28 338.1/01/84 Waugh, Frederick V. (Frederick Vail), 1898-1974. Graphic analysis : applications in agricultural economics. Washington, U.S. Dept. of Agriculture, Economic Research Service ; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1968] ii, 78 p. illus. 26cm. Agriculture handbook no. 326. Cover title. "Supersedes Graphic analysis in agricultural economics, Agriculture handbook no. 128." "Literature cited" : p. 78. Agriculture Economic aspects Research Graphic methods 12173 12173