TY  - BOOK
AU  - Sneddon,Ian N.
TI  - Elements of partial differential equations
U1  - 517.38 SNE 
PY  - 1957///
CY  - New York
PB  - McGraw-Hill
KW  - Differential equations, Partial
N1  - Gratis
Lalitha Janakiraman
ER  -