TY  - BOOK
AU  - Simmons,George Finlay
TI  - Differential equations,: with applications and historical notes
T2  - International series in pure and applied mathematics
SN  - 0070573751
U1  - 515.35 
PY  - 1972///]
CY  - New York, New Delhi
PB  - McGraw-Hill
KW  - Differential equations
N1  - Includes bibliographical references
ER  -