Não informado. (2001). Annual report of the forest insect survey. Department of Agriculture, Division of Entomology.
Citace podle Chicago (17th ed.)Não informado. Annual Report of the Forest Insect Survey. Ottawa: Department of Agriculture, Division of Entomology, 2001.
Citace podle MLA (8th ed.)Não informado. Annual Report of the Forest Insect Survey. Department of Agriculture, Division of Entomology, 2001.
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