sullivan, Michael. Precalculus / Michael Sullivan. - 9th ed. - Boston: Pearson Prentice Hall, 2012. - xxx, 556p +other pages.: ill. Includes index. ISBN: 9780321716835 Subjects--Topical Terms: Algebra--textbooksTrigonometry-- textbooks LC Class. No.: QA 154.3 SUL 2012.