Dooling, O. J., J. E. Dewey, and W. M. Ciesla. 1973. Northern Rocky Mountains (R-1). Pages 28-32 in D. P. Graham and J. F. Chansler, Forest insect and disease conditions in the United States, 1972. United States Department of Agriculture, Forest Service. vi + 72 p.
Dooling et al. 1973
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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