Barnett, Raymond A. College algebra / Raymond A. Barnett, Michael R. Ziegler and Karl E. Byleen. - 6th ed. - London : McGraw-Hill, c1999. - various pages : illustrations ; 27 cm. Includes index. ISBN: 0070063214 Subjects--Topical Terms: Algebra.Algebra--Graphic methods. Dewey Class. No.: 512.9 BAR