LEADER 01174nam  2200373Ia 450 
001 9910697632403321
005 20081017123645.0
035   $a(CKB)5470000002390640
035   $a(OCoLC)262692159
035   $a(EXLCZ)995470000002390640
100   $a20081017d1984      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aNondirectional beacon frequency congestion$b[electronic resource]
210  1$aWashington, D.C. :$cU.S. Dept. of Transportation, Federal Aviation Administration,$d[1984]
215   $a2 pages $cdigital, PDF file
225 1 $aAdvisory circular ;$vAC no: 20-120
300   $a"6/18/84."
300   $aTitle from PDF file caption (viewed Oct. 16, 2008).
606   $aRadio beacons
606   $aRadio frequency
606   $aRadio$xReceivers and reception
615  0$aRadio beacons.
615  0$aRadio frequency.
615  0$aRadio$xReceivers and reception.
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910697632403321
996   $aNondirectional beacon frequency congestion$93138416
997   $aUNINA