000 00321nam a2200133Ia 4500
008 240913s9999||||xx |||||||||||||| ||und||
082 _aGS 004.68 KEI/L
100 _aGerd.E.Keiser
245 0 _aLocal area networks
250 _aNULL
260 _bTata McGraw Hill
_aNew Delhi
_c1989
300 _a420 p
942 _cBKS
999 _c6414
_d6414