000 00270nam a2200121Ia 4500
100 _aBlack,Uyless
020 _a81-203-1041-1
942 _cBK
245 _aComputer networks
260 _aPrentice -Hall, New Delhi
_c1993
082 _a001.64404 Bla
300 _axii,436p
999 _c33170
_d33170