000
00307nam a2200109Ia 45e0
008
181001s1970 xx 000 0 und d
100
_a
Mallik U.G.
245
0
_a
Solution of prob. In electrical power
260
_a
London
_b
Pitman
_c
1970
300
_a
188
942
_2
ddc
_c
BK
999
_c
1911
_d
1911