APA (7th ed.) Citation

Geological Survey (U.S.), Western Earth Surface Processes Team (Geological Survey), & Graymer, R. W. (2007). Geologic map and map database of eastern Sonoma and Western Napa Counties, California (Ed. 1.0.). U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Western Earth Surface Processes Team (Geological Survey), and R. W. Graymer. Geologic Map and Map Database of Eastern Sonoma and Western Napa Counties, California. Ed. 1.0. Menlo Park, Calif.: U.S. Geological Survey, 2007.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Geologic Map and Map Database of Eastern Sonoma and Western Napa Counties, California. Ed. 1.0. U.S. Geological Survey, 2007.