Edwards, C. H Differential equations and boundary value problems : computing and modeling C. Henry Edwards, David E. Penney ; with the assistance of David Calvis - 4th ed - Upper Saddle River, N.J Pearson Education 2008 - xi, 804 p. : ill. ; 27 cm Includes index ISBN: 9780131561076 ISSN: 2009285956 Subjects--Topical Terms: Boundary value problemsDifferential equations Dewey Class. No.: 515.35 EDW