Salim, E., & Ullsten, O. Our forests, our future: Report of the World Commission on Forests and Sustainable Development.
Chicago-viite (17. p.)Salim, Emil, ja Ola Ullsten. Our Forests, Our Future: Report of the World Commission on Forests and Sustainable Development.
MLA-viite (8. p.)Salim, Emil, ja Ola Ullsten. Our Forests, Our Future: Report of the World Commission on Forests and Sustainable Development.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.