TY  - BOOK
AU  - Zachaman,D Z  .
AU  - Duchateau ,Panl   .
TI  - Theory and problems of partial differential equation / 
U1  - 515.353 
PY  - 1986///
CY  - New York : 
PB  - McGraw-Hill , 
KW  - DIFFERENTIAL EQUATION
N1  - Includes index
ER  -