APA (7th ed.) Citation

Atherton, R. A., Spratt, R. E., & Titcomb, J. (1949). Preliminary maps and reports released by the Geologic Division and the Conservation Division 1948. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Atherton, Ruth A., R. E. Spratt, and Jane Titcomb. Preliminary Maps and Reports Released by the Geologic Division and the Conservation Division 1948. Washington, D.C.: United States Department of the Interior, Geological Survey, 1949.

MLA (9th ed.) Citation

Atherton, Ruth A., et al. Preliminary Maps and Reports Released by the Geologic Division and the Conservation Division 1948. United States Department of the Interior, Geological Survey, 1949.