TY  - BOOK
AU  - Simmons,George Finlay
AU  - Krantz,Steven G.
TI  - Differential Equations : Theory, Technique, and Practice
SN  - 9780070616097
U1  - 515.35 
PY  - 2007///, 2011
CY  - New York
PB  - Tata McGraw-Hill
ER  -