000			00323nam a2200133Ia 4500
005			20260205054010.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a621.382 P94D
100			_aProakis G John
245		0	_aDigital communications
260			_aN Delhi _bMcGrawHill _c2001
300			_a1002p.
942			_cBK
999			_c130870 _d130870