01374nam 2200385 450 991071200700332120190503123339.0(CKB)5470000002490036(OCoLC)1099798228(EXLCZ)99547000000249003620190503d2011 ea 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierDS: software for analyzing data collected using double sampling /by Jonathan Bart and Dana HartleyReston, Virginia :U.S. Department of the Interior, U.S. Geological Survey,2011.1 online resource (iv, 24 pages) illustrationOpen-file report ;2011-1269Includes bibliographical references (page 22).DSBird populationsEstimatesComputer programsShore birdsCountingComputer programsBird populationsEstimatesComputer programs.Shore birdsCountingComputer programs.Bart Jonathan531545Hartley Dana-Lyn R.1965-Geological Survey (U.S.),GPOGPOBOOK9910712007003321DS: software for analyzing data collected using double sampling3540863UNINA