Cameron, J. (1974). The National Park Service: Its history, activities, and organization (Reprint.). AMS Press.
Chicago-Zitierstil (17. Ausg.)Cameron, Jenks. The National Park Service: Its History, Activities, and Organization. Reprint. New York: AMS Press, 1974.
MLA-Zitierstil (9. Ausg.)Cameron, Jenks. The National Park Service: Its History, Activities, and Organization. Reprint. AMS Press, 1974.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.