000 00310nam a22001337a 4500
020 _a0070010978
040 _cNUST
082 _a004.6
_bSCH
100 _aWilliam L. Schweber
_9126057
245 _aData communications
260 _aUSA:
_bGlencoe,
_c1995.
650 _2Data communications
942 _2ddc
_cBK
999 _c612086
_d612086