000			00375nam a2200145Ia 4500
008			231023s9999||||xx |||||||||||||| ||und||
020			_a9788120310414
041			_aeng
082			_a004.6 _bN93 BLA
100			_aBlack, Uyless _98724
245		0	_aComputer networks: protocols, standards and interfaces
250			_a2nd ed.
260			_bPHI Learning _c1993
942			_cBK
999			_c26135 _d26135