000 00269nam a2200109Ia 4500
082 _a621.3
_bHAL
100 _aHalliday, David
245 0 _aElectronic & Telecommunication ( Objactive)
260 _bSatish , & Brother
_aNew Delhi
_c2000
300 _a552p
942 _2ddc
_cREF
999 _c976
_d976