Hoffmann, Laurence D., Applied calculus for business, economics, and the social and life sciences/ - Expanded 8th ed. - Boston McGraw-Hill Higher Education, 2005. - xxxii, 976 p. : ill. ; 26 cm. + Includes indexes. ISBN: 0073018562 0072994398 0072994401 LC Class. No.: QA303.2 / .H67 2005