TY  - BOOK
AU  - Hammond P
TI  - Energy methods in electromagnetism
T2  - Monographs in electrical and electronic engineering; 12
U1  - CM65, M1;M6 
PY  - 1986///
CY  - Oxford
PB  - Clarendon Press        
KW  -  Electromagnetic theory
KW  - Physics
ER  -