Dyfyniad APA
ebrary, Inc, Boyce, J. K., & Shelley, B. G. (2003). Natural assets: Democratizing environmental ownership. Island Press.
Dyfyniad Arddull Chicago
ebrary, Inc, James K. Boyce, and Barry G. Shelley. Natural Assets: Democratizing Environmental Ownership. Washington, DC: Island Press, 2003.
Dyfyniad MLA
ebrary, Inc, et al. Natural Assets: Democratizing Environmental Ownership. Island Press, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.