000 00299nam a22001217a 4500
020 _a0-471-57552-6
082 _a621.317 MAS'A
100 _aMASON, C. RUSSELL
_977846
245 _aTHE ART AND SCIENCE OF PROTECTIVE RELAYING
260 _aNEWYORK
_bJOHN WILEY
_c1956
300 _a410P
942 _cBK
999 _c583049
_d583049