Edwards, C. H. 1937- Elementary differential equations with applications / C.H. Edwards, Jr., David E. Penney. - Englewood Cliffs, N.J. : Prentice-Hall, c1985. - xvii, 633, [31] p. : ill. ; 25 cm. ISBN: 0132541297 : $29.95 Subjects--Topical Terms: Differential equations. LC Class. No.: QA371 / .E3 1985 Dewey Class. No.: 515.3/5�19