Petty, J., R. M. Caltrell, A. E. Campbell, F. J. Emond, V. Hildahl, V. B. Patterson, G. N. Still, J. P. Susut, and R. C. Tidsbury. 1976. Annual district reports, Forest Insect and Disease Survey, Prairies Region, 1975. Canada Department of the Environment, Canadian Forestry Service, Northern Forest Research Centre, Information Report NOR-X-154. 30 p.
Petty et al. 1976
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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