00421nam a2200145Ia 4500008004100000020001500041041000800056082001800064100002200082245008700104250000600191260003800197300000800235650003200243210716s1990    xx            000 0 und d  a055851127X  aeng  a004.6801 NUNG  aNunemacher, Greg.  aLan: an introduction to local area networks.bIntroduction to local area networks.  a1  aUSAbM and T Publishing Incc1990  a221  aLocal Area Networks(004.68)