000			00318nam a2200133Ia 4500
100			_aRoddy Dennis & Coolen John
020			_a81-203-0984-7
250			_aFourth
942			_cBK
245			_aElectronic Communication
260			_aPrentice Hall of india, New Delhi _c2000
082			_a621.38 Rod
300			_aix,820p
999			_c26731 _d26731