000 00390nam a2200157Ia 4500
008 230524s9999 xx 000 0 und d
082 _a4.6
_bSHA
100 _aWilliam A. Shay
245 0 _aUnderstanding Data Communications and Networks
250 _a2ND
260 _aNEW DELHI
_bVikas
_c2001
300 _a711
500 _aQuantity Number: 3
650 _aElectronics
942 _cBK
999 _c26143
_d26143