00389nam a22001457a 4500008004100000082002000041100002000061245006000081250001200141260002600153300001100179365000900190650002200199700002200221200714b           ||||| |||| 00| 0 eng d00a621.3198bM3461  a Marklew, H. M.10aProtective methods for A.C. power circuits and machines  a1st ed.  aLondonbBlackiec1948  a142 p.  d6.14 0aElectric circuits  aCollier, J. A. B.