Petty, J., G. J. Smith, J. Susut, and R. Caltrell. 1972. Forest insect and disease conditions in Alberta Provincial Parks, 1971. Canada Department of the Environment, Canadian Forestry Service, Northern Forest Research Centre, Information Report NOR-X-26: 13 p.
Petty et al. 1972
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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