000			00379nam a2200145Ia 4500
008			230106s9999 xx 000 0 und d
082			_a621.3 _bNE-U
100			_aNellist,John G
245		0	_aUnderstanding telecommunication systems
250			_a2nd Ed.
260			_aNew Delhi _bMerrill Publication Co, _c1990
300			_a786
650			_aElectronics Engineering
942			_cBK
999			_c409 _d409