000			00471pam a2200157 a 4500
020			_a0131538837 :
082	0	0	_a621.38
100	1		_aBarker, Forrest L.
245	1	0	_aCommunications electronics : _bsystems, circuits, and devices / _cForrest Barker.
260			_aEnglewood Cliffs, N.J. : _bPrentice-Hall, _cc1987.
300			_axii, 676 p. : _bill. ;
500			_aIncludes index.
504			_aBibliography: p. 647-648.
650		0	_aTelecommunication.
942			_cBK
999			_c452900 _d452900