Kay, Ronald D. Farm management / Ronald D. Kay, William M. Edwards, Patricia A. Duffy. - 6th ed. - Boston : McGraw-Hill, c2008. - xi, 468p. : fully ill. ; 23 cm. Includes indexes. ISBN: 9780071259538 Subjects--Topical Terms: Farm management. Dewey Class. No.: C 730.68 K18 2008