TY  - BOOK
AU  - Ross, S. L.
TI  - Introductory to ordinary differential equations
SN  - 0471098817
AV  - DUCE Q372.R815 
PY  - 1989///
CY  - Canada
PB  - John Wiley & son
KW  - Science
KW  - mathematics
N1  - Includes bibliographical references
ER  -