Barnett Raymond A. Precalculus/ Raymond A.Barnett...[at..al] - 6th ed. - NewYork : McGraw Hill, 2008. - xxiv, 1044 p. : ill.; Includes Index ISBN: 9780071113199 Subjects--Topical Terms: Precalculus LC Class. No.: QA 331.3 .B38 2008