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100   $a20160128j201504    ua             0
101 0 $aeng
135   $aur|||||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aBehind start of take-off roll aircraft sound level directivity study- revision 1 $efinal report /$fMichael C. Lau [and six others]
210  1$aCambridge, MA :$cU.S. Department of Transportation, Research and Innovative Technology Administration, John A. Volpe National Transportation Systems Center, Environmental Measurement and Modeling Division,$dApril 2015.
215   $a1 online resource (vii, 81 pages) $ccolor illustrations
225 1 $aNASA/TM ;$v2012-217783
300   $a"DOT-VNTSC-NASA-12-01."
300   $a"April 2015 (revision to December 2012)."
320   $aIncludes bibliographical references (page 68).
517   $aBehind start of take-off roll aircraft sound level directivity study- revision 1 
606   $aAirplanes$zUnited States$xNoise
606   $aAirport noise$zUnited States
615  0$aAirplanes$xNoise.
615  0$aAirport noise
700   $aLau$b Michael C.$01395544
712 02$aJohn A. Volpe National Transportation Systems Center (U.S.),
712 02$aLangley Research Center.
801  0$bTRS
801  1$bTRS
801  2$bOCLCO
801  2$bGPO
906   $aBOOK
912   $a9910716792303321
996   $aBehind start of take-off roll aircraft sound level directivity study- revision 1$93454246
997   $aUNINA