000			00442nam a2200181Ia 4500
008			240925s9999 xx 000 0 und d
020			_a201500167
082			_a621.382 FRE
100			_aFred , R. Goldstein
245		0	_aISDN in perspective
250			_aNA
260			_aNew York: _bFree Press _c,1992.
300			_axxiv,668p. _bNA _fOriginal
500			_aNA
600			_aElectronic Engineering
650			_aTechnology
942			_cBK
999			_c5844 _d5844