01376nam 2200349Ka 450 991069541470332120170728144746.0(CKB)5470000002370617(OCoLC)77463907(EXLCZ)99547000000237061720061226d2006 ua 0engtxtrdacontentcrdamediacrrdacarrierComparison of combinations of sighting devices and target objects for establishing circular plots in the field[electronic resource] /Sylvio Mannel, and others[Washington, D.C.] :United States Dept. of Agriculture, Forest Service, Rocky Mountain Research Station,[2006]5 pages digital, PDF fileTitle from title screen (viewed on Dec. 26, 2006)."November 2006.""RMRS-RP-60."Includes bibliographical references.Environmental protectionResearchUnited StatesEnvironmental protectionResearchMannel Sylvio1415050Rocky Mountain Research Station (Fort Collins, Colo.)GPOGPOBOOK9910695414703321Comparison of combinations of sighting devices and target objects for establishing circular plots in the field3515978UNINA