TY  - BOOK
AU  - Sneddon, Ian N.
TI  - Elements of partial differential equations
SN  - 07-085740-7
U1  - 515.353 
PY  - 1957///
CY  - Tokyo
PB  - McGraw-Hill
KW  - Mathematics
KW  - Partial- Differential equations
KW  - Wave equations
N1  - Includes bibliographical references and index
ER  -