00460nam a2200169Ia 4500 140316s9999 xx 000 0 und d 0074604686 621.34 ARO/NA Arora,B R Natural source electro magnetic induction in the earth New Delhi New Age International (p) ltd 1997 250 Data processing techniques Management Niwas ddc BK 5136 5136 0 0 ddc 0 0 KAUCLV KAUCLV GENERAL 2014-03-18 0 621.34 ARO/NA 211908 2014-03-18 00:00:00 2014-03-18 BK