000 00277nam a2200121Ia 4500
008 161008s9999 xx 000 0 und d
100 _aKOHAR K S
245 _aDATA COMMUNICATION AND COMPUTER NETWORKS
250 _a2ND
260 _bVAYU
_c2013
300 _a136
942 _cBK
999 _c42455
_d42455