000			00434nam a2200145Ia 4500
008			241226s9999 xx 000 0 und d
020			_a0-07-044742-x
082			_a621.382 03 _bSHE
100			_aSheldon, T
245		0	_aMcgraw-hill encyclopedia of networking & telecommunications
260			_aNew Delhi : _bTata Mcgraw-Hill Pub, _c2001.
300			_axxxvi,1447
365			_a750
650			_aElectrical Electronics Communication,
999			_c134810 _d134810