000 00263nam a2200121Ia 4500
100 _aRitall and Krone
020 _a81-203-2235-5
365 _cRS
365 _d1
942 _cCD
245 _aTOP 50 NETWORIKING UTILITIES
260 _bCyber media
_c2001
_aNew york
999 _c26991
_d26991