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100   $a20141123d2000      ua             0
101 0 $aeng
135   $aurn||||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aFirst-principles calibration of ³?Ar tracers $eimplications for the ages of ??Ar/³?Ar fluence monitors /$fby Marvin A. Lanphere and G. Brent Dalrymple
210  1$a[Washington, D.C.] :$cUnited States Government Printing Office,$d2000.
215   $a1 online resource (iii, 10 pages) $cillustrations
225 1 $aU.S. Geological Survey professional paper ;$v1621
300   $aTitle from title screen (viewed October 21, 2014).
300   $aAt head of title: "U.S. Department of the Interior, U.S. Geological Survey."
320   $aIncludes bibliographical references (pages 10).
517   $aFirst-principles calibration of ³?Ar tracers 
606   $aArgon-argon dating$xStandards
615  0$aArgon-argon dating$xStandards.
700   $aLanphere$b Marvin A.$f1933-$0524473
702   $aDalrymple$b G. Brent
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bGPO
906   $aBOOK
912   $a9910706867203321
996   $aFirst-principles calibration of ³?Ar tracers$93511462
997   $aUNINA