Hirsch, Lewis. Understanding intermediate algebra : a graphing approach / Lewis Hirsch, Arthur Goodman. - Pacific Grove, CA : Brooks/Cole Pub. Co., c1997. - xix, 860 p. : col. ill. ; 26 cm. Includes index. ISBN: 0314202196 (hc : alk. paper) LCCN: 96045933 LC Class. No.: QA154.2 / .H575 1997 Dewey Class. No.: 512.9