Não informado. (2016). Bi-Monthly Research Notes. Canadian Forestry Service, Department of Fisheries and Forestry.
Chicago-referens (17:e uppl.)Não informado. Bi-Monthly Research Notes. Ottawa: Canadian Forestry Service, Department of Fisheries and Forestry, 2016.
MLA-referens (8:e uppl.)Não informado. Bi-Monthly Research Notes. Canadian Forestry Service, Department of Fisheries and Forestry, 2016.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.