TY  - BOOK
AU  - Williams,W.E.(William Elwyn)
TI  - Partial differential equations
SN  - 0198596332 (pbk.)
PY  - 1980///
CY  - Oxford Eng., New York, Oxford University Press
PB  - Clarendon Press
KW  -  Differential equations, Partial
N1  - Includes index; Includes bibliographies
ER  -