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035   $a(OCoLC)77463907
035   $a(EXLCZ)995470000002370617
100   $a20061226d2006      ua             0
101 0 $aeng
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aComparison of combinations of sighting devices and target objects for establishing circular plots in the field$b[electronic resource] /$fSylvio Mannel, and others
210  1$a[Washington, D.C.] :$cUnited States Dept. of Agriculture, Forest Service, Rocky Mountain Research Station,$d[2006]
215   $a5 pages $cdigital, PDF file
300   $aTitle from title screen (viewed on Dec. 26, 2006).
300   $a"November 2006."
300   $a"RMRS-RP-60."
320   $aIncludes bibliographical references.
606   $aEnvironmental protection$xResearch$zUnited States
615  0$aEnvironmental protection$xResearch
700   $aMannel$b Sylvio$01415050
712 02$aRocky Mountain Research Station (Fort Collins, Colo.)
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910695414703321
996   $aComparison of combinations of sighting devices and target objects for establishing circular plots in the field$93515978
997   $aUNINA