000 00351nam a2200121 4500
999 _c173872
_d173872
027 _aBS 3026 : 1958
_q1958
041 _aeng
942 _cSD
110 _aBritish Standards Institution, London
245 _aBS 3026 : 1958 : Voltages for high voltage D.C. transmission systems
260 _aLondon
_bBritish Standards Institution
500 _aSDT1219