Mammoth Lakes revisited, 50 years after a Douglas-fir Tussock Moth outbreak
[Portland, Or.] (319 S.W. Pine St., P.O. Box 3890, Portland 97208), U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, [1991]
1991
U.S. Department of Agriculture, National Agricultural Library
U.S. Department of Agriculture, National Agricultural Library
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