TY  - BOOK
AU  - ARNOLD SOMMERFELD
TI  - PARTIAL DIFFERENTIAL EQUATIONS IN PHYSICS
U1  - GN530.1SE55P 
PY  - 1964///
CY  - NEW YORK
PB  - ACADEMIC PRESS INC.
KW  - PARTIAL DIFFERENTIAL EQUATIONS IN PHYSICS
N1  - MODERN BOOK HOUSE
ER  -