Heady, Earl Orel 1916- Farm management economics / by Earl O. Heady and Harald R. Jensen. - New Delhi : Prentice-Hall, 1964. - 645 p. : illus. ; 24 cm. Index present. LCCN: 54009413 Subjects--Topical Terms: Farm management. Dewey Class. No.: 631 / HEF 1964