000			00447nam a2200145Ia 4500
008			161214s9999 xx 000 0 und d
020			_a0863413625 _c(pbk)
082			_223 _a621.382 _bVAL
100			_aValdar, Andy
245		0	_aUnderstanding telecommunications networks
260			_aLondon: _bInstitution of Engineering and Technology, _c2006
300			_ax, 336 p.; _bill., maps: _c24 cm.
650			_aTelecommunication systems
942			_2ddc _cBK
999			_c4476 _d4476