Ross, Sheldon M. A first course in probability / Sheldon Ross. - 7th ed. - Upper Saddle River, N.J. : Pearson Prentice Hall, c2006. - x, 565 p. : ill. ; 25 cm. Includes index. ISBN: 0132018179 Subjects--Topical Terms: Probabilities-- Textbooks. Dewey Class. No.: 519.2 ROS