000 00418nam a22001697a 4500
020 _a0070111278
050 _aMED TK5102.5
_bC3
100 _aCarlson,Bruce A
245 _aCommunication systems
250 _a4th ed
260 _aBoston Burr Ridge
_bElizabeth A Jones
_c2002
300 _axiii,850p.
_bill.
650 _aCommunication systems
700 _aCrilly,Paul B
700 _aRutledge,Janet C
942 _cBK
999 _c2162
_d2162