University of Massachusetts at Amherst. Natural Assets Project., Boyce, J. K., & Shelley, B. G. (2003). Natural assets: Democratizing environmental ownership. Washington, DC: Island Press.
استشهاد بنمط شيكاغوUniversity of Massachusetts at Amherst. Natural Assets Project., James K. Boyce, و Barry G. Shelley. Natural Assets: Democratizing Environmental Ownership. Washington, DC: Island Press, 2003.
MLA استشهادUniversity of Massachusetts at Amherst. Natural Assets Project., James K. Boyce, و Barry G. Shelley. Natural Assets: Democratizing Environmental Ownership. Washington, DC: Island Press, 2003.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.