LEADER 01640nam  2200469Ia 450 
001 9910711266303321
005 20180711121001.0
024 8 $aGOVPUB-C13-f2c2d4503d73a1c0197a5b4b21febcd4
035   $a(CKB)5470000002481357
035   $a(OCoLC)959982853
035   $a(OCoLC)995470000002481357
035   $a(EXLCZ)995470000002481357
100   $a20161006d1954      ua             0
101 0 $aeng
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aImprovement of visual aids for air navigation $eprogress report July 1, 1953 to February 28, 1954 /$fF.C. Breckenridge
210  1$aGaithersburg, MD :$cU.S. Dept. of Commerce, National Institute of Standards and Technology,$d1954.
215   $a1 online resource
225 1 $aNBS report ;$v3185
300   $a1954.
300   $aContributed record: Metadata reviewed, not verified. Some fields updated by batch processes.
300   $aTitle from PDF title page.
320   $aIncludes bibliographical references.
517   $aImprovement of visual aids for air navigation 
606   $aAids to air navigation
606   $aAids to air navigation$2fast
615  0$aAids to air navigation.
615  7$aAids to air navigation.
700   $aBreckenridge$b F. C$01400233
701   $aBreckenridge$b F. C$01400233
712 02$aUnited States.$bNational Bureau of Standards.
801  0$bNBS
801  1$bNBS
801  2$bOCLCO
801  2$bOCLCF
801  2$bOCLCQ
906   $aBOOK
912   $a9910711266303321
996   $aImprovement of visual aids for air navigation$93498944
997   $aUNINA