Heady, Earl Orel, Economics of agricultural production and resource use / by Earl O. Heady. - New York : Prentice-Hall, c1952.[Indian reprint 1961,1968] - 850 p. : ill. ; 24 cm. Includes index. Subjects--Topical Terms: Agriculture -- Economic aspects. LC Class. No.: HD1411 / .H4 Dewey Class. No.: 338.1 / HEE