TY  - BOOK
AU  - Sommerfeld, A
TI  - Partial differential equations in physics
SN  - 8187169494
U1  - 53:517.95 
PY  - 2004///
CY  - Kolkata
PB  - Levant
KW  - DIFFERENTIAL EQUATION-PHYSICS
N1  - library has all the six volumes
ER  -