USDA Forest Service General technical report WO
Forest Service, U.S. Department of Agriculture
U.S. Dept. of Agriculture, Forest Service [1981] USDA Forest Service General technical report WO 26
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U.S. Department of Agriculture Forest Service
Department of Agriculture Forest Service [1979] USDA Forest Service General technical report WO 12
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Forest Service, U.S. Dept. of Agriculture, 1978 USDA Forest Service General technical report WO 5
Dixie R. Smith, technical coordinator
Forest Service, U.S. Dept. of Agriculture 1975 USDA Forest Service General technical report WO 1
