APA (7th ed.) Citation

Cobb, E. H. (1972). Metallic mineral resources map of the Chignik quadrangle, Alaska. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Cobb, Edward H. Metallic Mineral Resources Map of the Chignik Quadrangle, Alaska. Washington, D.C.: U.S. Geological Survey, 1972.

MLA (9th ed.) Citation

Cobb, Edward H. Metallic Mineral Resources Map of the Chignik Quadrangle, Alaska. U.S. Geological Survey, 1972.