Aufmann Richard N. College algebra/ Richard N Aufmann; Vernon C Barker; Richard Nation. - 6th Ed. - Boston : Houghton Mifflin, 2008. - xix, 722, [90] pages : illustrations (chiefly color) ; 27 cm. Includes index. ISBN: 9780618803712 0618803718 Subjects--Topical Terms: Algebra--Textbooks. LC Class. No.: QA154 / AUF 2008