000 00326nam a2200121Ia 4500
008 211209s1989 xx 000 0 und d
041 _aeng
082 _a621.31
100 _aGUMHALTER HANS
245 _aPOWER SUPPLY SYSTEMS IN COMMUNICATIONS ENGINEERING PART-2
260 _aNEW DELHI
_bWILEY EASTERN
_c1989
300 _a379
999 _c101793
_d101793