000
00268nam a2200109Ia 4500
008
220201s1966 xx 000 0 eng d
100
_a
Indian Standard Institute
245
0
_a
IS:3043-Code of practice of earthing
260
_b
ISI
_c
1966
300
_a
78
942
_2
ddc
999
_c
74726
_d
74726