000			00408nam a2200145Ia 4500
008			220217s9999||||xx |||||||||||||| ||und||
020			_a0-07-463682-0
082			_a621.382 KEN
100			_aHalliday David and others
245		0	_aElectronic communications systems
250			_a3rd
260			_aTata mcgraw hill _bNew Delhi _c1998
300			_axxii,741p; _b240
650			_aCOMMUNICATION SYSTEM
999			_c164937 _d164937