TY  - BOOK
AU  - Sneddon,Ian Naismith
TI  - Elements of partial differential equations
SN  - 007Y857407
U1  - 517.38 22
PY  - 1957///
CY  - New York
PB  - McGraw-Hill Book company.
KW  - Differential equations, Partial
N1  - Include index
ER  -