TY  - BOOK
AU  - Sneddon, Ian N.
TI  - Elements of partial differential equations
T2  - International series in pure and applied mathematics
SN  - 0-07-085740-7
U1  - 517.95 
PY  - 1957///
CY  - London
PB  - McGraw-Hill
KW  - Partial differential equation
ER  -