Não informado. (2001). Annual report of the forest insect survey. Department of Agriculture, Division of Entomology.
Citação do estilo Chicago (17ª ed.)Não informado. Annual Report of the Forest Insect Survey. Ottawa: Department of Agriculture, Division of Entomology, 2001.
Citação MLA (8ª ed.)Não informado. Annual Report of the Forest Insect Survey. Department of Agriculture, Division of Entomology, 2001.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.