Blake, E. A., M. R. Wagner, and T. W. Koerber. 1986. Insects destructive to ponderosa [pine]. Pages 238-242 in R. C. Shearer (ed.), Conifer tree seed in the inland Mountain West: symposium proceedings, 5-6 August 1985, Missoula, Montana. United States Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station (Ogden, Utah), General Technical Report.
Blake et al. 1986
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