Field, D. R., & Machlis, G. E. (2000). National parks and rural development: Practice and policy in the United States. Washington, D.C.: Island Press.
Chicago Style CitationField, Donald R., i Gary E. Machlis. National Parks and Rural Development: Practice and Policy in the United States. Washington, D.C.: Island Press, 2000.
Cita MLAField, Donald R., i Gary E. Machlis. National Parks and Rural Development: Practice and Policy in the United States. Washington, D.C.: Island Press, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.