APA (7th ed.) Citation

Helley, E. J., Lajoie, K. R., & Burke, D. B. (1972). Geologic map of Late Cenozoic deposits, Alameda County, California. Geological Survey.

Chicago Style (17th ed.) Citation

Helley, Edward J., K. R. Lajoie, and D. B. Burke. Geologic Map of Late Cenozoic Deposits, Alameda County, California. [Menlo Park]: Geological Survey, 1972.

MLA (9th ed.) Citation

Helley, Edward J., et al. Geologic Map of Late Cenozoic Deposits, Alameda County, California. Geological Survey, 1972.