APA aipamena

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 aipamena

Field, Donald R., và Gary E. Machlis. National Parks and Rural Development: Practice and Policy in the United States. Washington, D.C.: Island Press, 2000.

MLA aipamena

Field, Donald R., và Gary E. Machlis. National Parks and Rural Development: Practice and Policy in the United States. Washington, D.C.: Island Press, 2000.