Condon, B. S., & White, W. A. (1994). Valuation of nontimber forest resources: an overview: Information report. Canadian Forest Service, Northwest Region, Northern Forestry Centre.
Chicago-Zitierstil (17. Ausg.)Condon, Barbara Susan, und W. A. White. Valuation of Nontimber Forest Resources: An Overview: Information Report. Edmonton: Canadian Forest Service, Northwest Region, Northern Forestry Centre, 1994.
MLA-Zitierstil (9. Ausg.)Condon, Barbara Susan, und W. A. White. Valuation of Nontimber Forest Resources: An Overview: Information Report. Canadian Forest Service, Northwest Region, Northern Forestry Centre, 1994.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.