000			00523nam a2200193Ia 4500
005			20250220125245.0
008			250220s9999||||xx |||||||||||||| ||und||
020			_a0333646894 _c£18.50
040			_aMAIN
041			_aEnglish
082			_a004.6 _bSIM
100			_aSimmonds, Andrew
245			_aData communications and transmission principles _ban introduction
260			_aLondon _bMacmillan Publishing _c1988
300			_aix,303p.
650			_aComputer networks
650			_aData communication
942			_cBK
999			_c25741 _d25741