Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Ragenovich, I. R., and H. D. Brown. 1980. Southwestern Region (R-3). Pp. 20-24. in: Forest Insect and Disease Conditions in the United Sates 1978. Orr, P. W. (eds.) United States Department of Agriculture, Forest Service. iv+83 pp..