000			00507nam a2200205Ia 4500
008			240509s9999 xx 000 0 und d
020			_a0008178080982
041			_aEng
082			_a004.6
082			_bH14
100			_aHALSALL F.
245		0	_aDATA COMMUNICATIONS, COMPUTER NETWORKS AND OPEN SYSTEMS
250			_a4th ed.
260			_bADDISION WESLEY : CALIFORNIA
260			_c1999
300			_a907 p.
650			_aCOMPUTER NETWORKS : DATA COMMUNICATION
942			_2ddc
942			_cLBK
999			_c22084 _d22084
945			_a1 _bMadushi Gamage _c1 _dMadushi Gamage