Não informado. Annual report of the forest insect and disease survey. Department of Forestry and Rural Development, Forest Entomology and Pathology Branch.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Annual Report of the Forest Insect and Disease Survey. Ottawa: Department of Forestry and Rural Development, Forest Entomology and Pathology Branch.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Annual Report of the Forest Insect and Disease Survey. Department of Forestry and Rural Development, Forest Entomology and Pathology Branch.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.