APA (7th ed.) Citation

Sims, J. D., & Nilsen, T. H. (1972). Preliminary photointerpretation map of landslide and other surficial deposits of parts of the Pittsburg and Rio Vista 15-minute quadrangles, Contra Costa and Solano counties, California. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Sims, John D., and Tor Helge Nilsen. Preliminary Photointerpretation Map of Landslide and Other Surficial Deposits of Parts of the Pittsburg and Rio Vista 15-minute Quadrangles, Contra Costa and Solano Counties, California. [Washington]: U.S. Geological Survey, 1972.

MLA (9th ed.) Citation

Sims, John D., and Tor Helge Nilsen. Preliminary Photointerpretation Map of Landslide and Other Surficial Deposits of Parts of the Pittsburg and Rio Vista 15-minute Quadrangles, Contra Costa and Solano Counties, California. U.S. Geological Survey, 1972.