TY  - BOOK
AU  - Rao, Sankara K.
TI  - Introduction to Partial differential equations
SN  - 9788120342224
U1  - 515.353 
PY  - 2011///
CY  - New Delhi
PB  - Phi Learning Pvt. Ltd.
KW  - Mathematics
KW  - Parabola
KW  - Hyperbola
ER  -