TY  - BOOK
AU  - Waltman, Paul E
TI  - A second course in elementary differential equations
SN  - 9780486434780
U1  - 515.35 WAL 
PY  - 2004///
CY  - Mineola, NY
PB  - Dover Publications
KW  - Differential equations
N1  - Originally published: Orlando : Academic Press, c1986. With an addendum added to the preface. Includes bibliographical references and index
ER  -