TY  - BOOK
AU  - Arora,B R
AU  - Niwas
TI  - Natural source electro magnetic induction in the earth
SN  - 0074604686
U1  - 621.34 
PY  - 1997///
CY  - New Delhi
PB  - New Age International (p) ltd
KW  - Data processing techniques
KW  - Management
ER  -