Zill, Dennis G. A First course in differential equations with modeling applications / Dennis G. Zill - Eleventh edition. - Australia : Cengage Learning, 2018. - x, 451 pages : col. ill. ; 29 cm. Includes index. ISBN: 9781305965720 HB Subjects--Topical Terms: Differential equations LC Class. No.: QA 372 Z55 2018 CIRC