000
00315nam a2200133Ia 4500
008
210901s1984 xx 000 0 eng d
082
_a
621.3 COT
100
_a
Cotton, H.
245
0
_a
Electrical technology
260
_a
Delhi
_b
CBS Publishers
_c
1984
300
_a
864
650
_a
Engineering
942
_2
ddc
_c
BK
999
_c
18975
_d
18975