000 00308nam a2200121Ia 4500
008 211209s1979 xx 000 0 und d
041 _aeng
082 _a621.3191 N79 KIR
100 _aKIRCHMAYER, LEON K
245 _aECONOMIC OPERATION OF POWER SYSTEM
260 _bWILEY EASTERN LTD
_c1979
300 _a260
999 _c22664
_d22664