Aufmann, Richard N. Basic college mathematics an applied approach Richard N. Aufmann, Joanne S. Lockwood. - Ninth Edition. - Belmont, CA Brooks/Cole, Cengage Learning c2011. Includes indexes. ISBN: 9781439046968 (pbk.) 1439046964 (pbk.) LCCN: 2009932924 Subjects--Topical Terms: Mathematics--Textbooks.