Gray, J. A. (2002). Forest concession policies and revenue systems: Country experience and policy changes for sustainable tropical forestry. World Bank.
Chicago-Zitierstil (17. Ausg.)Gray, John Andrew. Forest Concession Policies and Revenue Systems: Country Experience and Policy Changes for Sustainable Tropical Forestry. Washington, DC: World Bank, 2002.
MLA-Zitierstil (9. Ausg.)Gray, John Andrew. Forest Concession Policies and Revenue Systems: Country Experience and Policy Changes for Sustainable Tropical Forestry. World Bank, 2002.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.