Cita APA (7a ed.)

International Union for Conservation of Nature and Natural Resources, National Park Service\nOrganization of American States\nEastern National Park and Monument Association. (1976). Parks. U.S. National Park Service.

Cita Chicago Style (17a ed.)

International Union for Conservation of Nature and Natural Resources, National Park Service\nOrganization of American States\nEastern National Park and Monument Association. Parks. Washington: U.S. National Park Service, 1976.

Cita MLA (8a ed.)

International Union for Conservation of Nature and Natural Resources, National Park Service\nOrganization of American States\nEastern National Park and Monument Association. Parks. U.S. National Park Service, 1976.

Precaución: Estas citas no son 100% exactas.