Martin-Gay, Elayn K. Prealgebra / K. Elayn Martin-Gay, University of New Orleans. - Fourth edition. - Upper Saddle River : Pearson Education, Inc., 2004. - xxxi, 837 pages [and various pages] : illustrations. Includes index. ISBN: 9780131444485 Subjects--Topical Terms: Arithmetic LC Class. No.: QA 107 / MAR 2004.