Não informado. (2001). Annual report of the forest insect survey. Department of Agriculture, Division of Entomology.
Style de citation Chicago (17e éd.)Não informado. Annual Report of the Forest Insect Survey. Ottawa: Department of Agriculture, Division of Entomology, 2001.
Style de citation MLA (8e éd.)Não informado. Annual Report of the Forest Insect Survey. Department of Agriculture, Division of Entomology, 2001.
Attention : ces citations peuvent ne pas être correctes à 100%.