Dyfyniad APA

Gray, J. A. (2002). Forest concession policies and revenue systems: Country experience and policy changes for sustainable tropical forestry. World Bank.

Dyfyniad Arddull Chicago

Gray, John Andrew. Forest Concession Policies and Revenue Systems: Country Experience and Policy Changes for Sustainable Tropical Forestry. Washington, D.C: World Bank, 2002.

Dyfyniad MLA

Gray, John Andrew. Forest Concession Policies and Revenue Systems: Country Experience and Policy Changes for Sustainable Tropical Forestry. World Bank, 2002.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.