APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Edward H. Cobb. Metallic Mineral Resources Map of the Skagway Quadrangle, Alaska. [Reston, Va.]: The Survey, 1972.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Edward H. Cobb. Metallic Mineral Resources Map of the Skagway Quadrangle, Alaska. The Survey, 1972.