Não informado. (2016). Bi-Monthly Research Notes. Canadian Forestry Service, Department of Fisheries and Forestry.
Chicago-viite (17. p.)Não informado. Bi-Monthly Research Notes. Ottawa: Canadian Forestry Service, Department of Fisheries and Forestry, 2016.
MLA-viite (8. p.)Não informado. Bi-Monthly Research Notes. Canadian Forestry Service, Department of Fisheries and Forestry, 2016.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.