APA Citation

Estados Unidos. Departament of the Interior. (1972). National enviromental study area: A guide. Washington, D.C.: National Park Service.

Chicago Style Citation

Estados Unidos. Departament of the Interior. National Enviromental Study Area: A Guide. Washington, D.C.: National Park Service, 1972.

MLA Citation

Estados Unidos. Departament of the Interior. National Enviromental Study Area: A Guide. Washington, D.C.: National Park Service, 1972.

Warning: These citations may not always be 100% accurate.