APA (7th ed.) Citation

Cobb, E. H., & Geological Survey (U.S.). (1964). Placer gold occurrences in Alaska. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Cobb, Edward H., and Geological Survey (U.S.). Placer Gold Occurrences in Alaska. Washington, D.C.: U.S. Geological Survey, 1964.

MLA (8th ed.) Citation

Cobb, Edward H., and Geological Survey (U.S.). Placer Gold Occurrences in Alaska. U.S. Geological Survey, 1964.