"Wyoming and Western South Dakota-timber production and mill residues, 1983" . "Wyoming and western South Dakota : timber production and mill residues, 1983" . . . . . . . . . . . . . "Wyoming and western South Dakota--timber production and mill residues, 1983" . "Wyoming and western South Dakota--timber production and mill residues, 1983"@en . . . . . . "Statistics" . . . "Statistics"@en . . .