000 00271nam a2200121Ia 4500
100 _aBlack, Uyless
020 _a0-13-166091-8-25
942 _cBK
245 _aComputer network
260 _aPrentice Hall, New Jersey
_c1987
082 _a001.64404 Bla
300 _aix,451
999 _c62298
_d62298