00356nam a2200145Ia 4500008004100000020001800041041000800059082001600067100002200083245003900105250000600144260003900150300001200189650000900201210716s1992    xx            000 0 und d  a9781562760311  aeng  a004.68 DERF  aDerfler, Frank J.  aPC magazine guide to linking lans.  a1  aCaliforniabZiff Davis Pressc1992  axvi,293  aNone