000 00286nam a22001217a 4500
020 _aNA
082 _222
_a621.31912
100 _aNA
245 _aETD40-HVDC power systems /
260 _aNew Delhi,
_bBureau of Indian Standards,
_cc2007.
300 _aNA
_bill. ;
_c30 cm.
942 _2ddc
_cEE
999 _c902
_d902