APA (7th ed.) Citation

Wilson, D., Hansen, B. E., & Keroher, G. C. (1959). Index to the geologic names of North America. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Wilson, Druid, Blanche E. Hansen, and Grace C. Keroher. Index to the Geologic Names of North America. Washington, D.C.: United States Department of the Interior, Geological Survey, 1959.

MLA (9th ed.) Citation

Wilson, Druid, et al. Index to the Geologic Names of North America. United States Department of the Interior, Geological Survey, 1959.