Elementary and intermediate algebra / Dugopolski, Mark. Algebra 512 MCG 2006 A031 Or. Includes index. Boston Burr Ridge, Ill. : McGraw Hill Higher Education, c2006. c2006. Text xxxiv, 930, A-111, I-10 p. : http://www.loc.gov/catdir/toc/ecip052/2004023716.html http://www.loc.gov/catdir/enhancements/fy0668/2004023716-d.html