000 00262nam a2200109Ia 4500
008 190912s9999||||xx |||||||||||||| ||und||
100 _aRaymond R. Panko
245 0 _aBusiness Data Communications
260 _aUSA
_bMcGraw-Hill
_c1997
300 _a556
942 _cBK
999 _c7438
_d7438