APA (7th ed.) Citation

Grand Canyon Natural History Association, Museum of Northern Arizona, & Geological Survey (U.S.). (1980). Geologic map of the eastern part of the Grand Canyon National Park, Arizona (1980 ed.). Grand Canyon Natural History Association ; Museum of Northern Ariz..

Chicago Style (17th ed.) Citation

Grand Canyon Natural History Association, Museum of Northern Arizona, and Geological Survey (U.S.). Geologic Map of the Eastern Part of the Grand Canyon National Park, Arizona. 1980 ed. Grand Canyon, Ariz. : Flagstaff, Ariz.: Grand Canyon Natural History Association ; Museum of Northern Ariz., 1980.

MLA (9th ed.) Citation

Grand Canyon Natural History Association, et al. Geologic Map of the Eastern Part of the Grand Canyon National Park, Arizona. 1980 ed. Grand Canyon Natural History Association ; Museum of Northern Ariz., 1980.