000 00331nam a2200133Ia 4500
008 170101s1997 xx 000 0 und d
020 _a8173191794
100 _aHughes Larry
245 0 _aData Communications,Introduction To
260 _aN.Delhi
_bNPH
_c1997
300 _a502
650 _aData Communications
942 _2ddc
_cBK
999 _c17843
_d17843