000			00326nam a2200121Ia 4500
008			231129s2006 xx 000 0 und d
041			_aeng
082			_a004.6/BLA
100			_aU. Black
245			_aComputer Network
250			_a2nd ed
260			_aPrentice hall of India New Delhi _bPrentice hall of India New Delhi _c2006
999			_c939073 _d939073