TY  - BOOK
AU  - Copson, E.T.
TI  - Partial differential equations
SN  - 0-521-09893-9
U1  - 515.353 
PY  - 1975///
CY  - London
PB  - Cambridge
KW  - Mathematics
KW  - Partical differential equation
N1  - Includes index
ER  -