APA (7th ed.) Citation

McEwen, R. B., Calkins, H. W., & Ramey, B. S. (1983). Overview and USGS activities. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

McEwen, Robert B., Hugh W. Calkins, and Benjamin S. Ramey. Overview and USGS Activities. [Reston, Virginia]: United States Department of the Interior, Geological Survey, 1983.

MLA (9th ed.) Citation

McEwen, Robert B., et al. Overview and USGS Activities. United States Department of the Interior, Geological Survey, 1983.