000			00394nam a22001577a 4500
003			OSt
008			230405b ||||| |||| 00| 0 eng d
020			_a9780155898158
082			_bROS _a621.382
100			_aRosen, Arnold
245			_aTelecommunications
260			_aCalifornia: _bHarcourt College, _c©1987
300			_axiv, 304p.
650			_aTelecommunication systems
942			_2ddc _cBK
999			_c9615 _d9615