Field, D. R., & Machlis, G. E. (2000). National parks and rural development: Practice and policy in the United States. Washington, D.C.: Island Press.
Stile di citazione ChicagoField, Donald R., e Gary E. Machlis. National Parks and Rural Development: Practice and Policy in the United States. Washington, D.C.: Island Press, 2000.
Citazione MLAField, Donald R., e Gary E. Machlis. National Parks and Rural Development: Practice and Policy in the United States. Washington, D.C.: Island Press, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.