Não informado. (2008). Forestry Bulletin. Duke University, School of Forestry.
Chicago-Zitierstil (17. Ausg.)Não informado. Forestry Bulletin. Durham, NC: Duke University, School of Forestry, 2008.
MLA-Zitierstil (8. Ausg.)Não informado. Forestry Bulletin. Duke University, School of Forestry, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.