TY  - BOOK
AU  - Simmons,George F.
TI  - Differential Equations
T2  - International series in pure and applied mathematics
U1  - 515.35 
PY  - 1978///
CY  - New Delhi
PB  - Tata McGraw Hill
KW  - Differential Equations
N1  - Includes bibliographical references
ER  -