Não informado. (2015). Yearbook of Forest Products Statistics. Food and Agriculture Organization of the United Nations.
Chicago-viite (17. p.)Não informado. Yearbook of Forest Products Statistics. Rome: Food and Agriculture Organization of the United Nations, 2015.
MLA-viite (8. p.)Não informado. Yearbook of Forest Products Statistics. Food and Agriculture Organization of the United Nations, 2015.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.