000 00295nam a2200109Ia 4500
008 161222s9999 xx 000 0 und d
020 _cRS. 650.00
100 _aMichael Duck
245 _aData communications and computer networks
_cMichael Duck
260 _aNew Delhi
_bPearson
_c2009
300 _a436
999 _c6072
_d6072