000 00297nam a2200121Ia 4500
008 211209s1989 xx 000 0 und d
041 _aeng
082 _a621.31 N89 GUP
100 _aGUPTA, S S
245 _aELECTRICAL ENGINEERING
260 _aNEW DELHI
_bLAXMI PUBLICATION
_c1989
300 _a755
999 _c24950
_d24950