Cramer, Gail L. Agricultural economics and agribusiness / Gail L. Cramer and Clarence W. Jensen - 6th ed. - New York : John Wiley, c 1994 - xiv, 524 p. : ill. ; 21 cm. ISBN: 0471595527 LCCN: 84082025 Subjects--Topical Terms: System design.System analysis. Dewey Class. No.: 338.10973 / C84a 6th ed. 1994