000
00270nam a2200109Ia 4500
008
220201s2008 xx 000 0 eng d
100
_a
Seth SP
245
0
_a
Element of Electromegnetic field
260
_a
New Delhi
_b
Dhanpat Rai Com
_c
2008
300
_a
443
942
_2
ddc
999
_c
64938
_d
64938