000 00324nam a2200133Ia 4500
008 190905s9999||||xx |||||||||||||| ||und||
020 _a978-93-325-8693-2
100 _aWilliam Stallings
245 0 _aData and Computer communications
250 _a10th
260 _aIndia
_bPearson
_c2019
300 _a907
942 _cBK
999 _c5840
_d5840