000 003200000a22001210004500
080 _a621.37
_bL8
100 _aLythall, R.T.
245 _aCalculation of fault currents in electrical networks : circuit breaker selection
250 _a2nd ed.
260 _aLondon
_bSir Isaac Pitman
_c1947
300 _a77p.
942 _cBK
999 _c52689
_d52689