APA aipamena

Parks Canada & United States. National Park Service. (1976). Parks: An international journal for managers of national parks, historic sites, and other protected areas. Parks Canada : National Park Service of the United States.

Chicago Style aipamena

Parks Canada and United States. National Park Service. Parks: An International Journal for Managers of National Parks, Historic Sites, and Other Protected Areas. Washington, D.C.: Parks Canada : National Park Service of the United States, 1976.

MLA aipamena

Parks Canada and United States. National Park Service. Parks: An International Journal for Managers of National Parks, Historic Sites, and Other Protected Areas. Parks Canada : National Park Service of the United States, 1976.