000 00312nam a2200121Ia 4500
008 160710s1958 xx 000 0 und d
082 _a621.31 KIR
100 _aKIRCHMAYER, LEON K.
245 _aECONOMIC EPERATION OF POWER SYSTEMS
260 _bJOHN WILEY & SONS, INC.
_c1958
300 _a260
942 _2ddc
_cB
999 _c34974
_d34974