Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Baker, B. H., B. B. Hostetler, and T. H. Laurent. 1977. Alaska (R-10). Pages 3-6 in H. V. Toko and T. J. Rogers, Forest insect and disease conditions in the United States, 1974. United States Department of Agriculture, Forest Service. vi + 55 p.