000			00518nam a2200205Ia 4500
008			240509s9999 xx 000 0 und d
020			_a0000471508772
041			_aEng
082			_a004.6
082			_bF37
100			_aFITZGERALD, J. :
245		0	_aBusiness data communications : Basic concepts, Security and Design
250			_a3rd ed.
260			_bNew York : John Wiley
260			_c1990
300			_a628 p.
650			_aData Communication : Computer Networks
942			_2ddc
942			_cRBK
999			_c22016 _d22016
945			_a1 _bMadushi Gamage _c1 _dMadushi Gamage