APA (7th ed.) Citation

Nichols, D. R., & Wright, N. A. (1971). Preliminary map of historic margins of marshland, San Francisco Bay, California. United States Geological Survey.

Chicago Style (17th ed.) Citation

Nichols, Donald R., and Nancy A. Wright. Preliminary Map of Historic Margins of Marshland, San Francisco Bay, California. [Menlo Park]: United States Geological Survey, 1971.

MLA (9th ed.) Citation

Nichols, Donald R., and Nancy A. Wright. Preliminary Map of Historic Margins of Marshland, San Francisco Bay, California. United States Geological Survey, 1971.