000			00332nam a2200157Ia 4500
100			_aStallings, William
080			_a001.64404
526			_dTB
526			_aPG
366			_f#REF!
942			_cBK
245			_aData and computer communications 10th ed.
260			_aPearson _bNew Delhi _c2018
300			_a907
546			_aE
999			_c57520 _d57520