TY  - BOOK
AU  - Wangsness, Roald K.
TI  - Electromagnetic fields
U1  - 537.12 
PY  - 1979///
CY  - New York
PB  - John wlley & sons
KW  - Physics
KW  - পদার্থবিদ্যা
N1  - Index include
ER  -