000 00313nam a2200121Ia 4500
008 250409s9999 xx 000 0 und d
020 _a81-317-1679-3
082 _a4.6
_bSTA
100 _aStallings, william
245 0 _aBusiness data communication 5/E
260 _aVidhyanagar
_bPearson
_c2008
365 _a325/-
999 _c255861
_d255861