APA (7th ed.) Citation

Gryc, G. (1985). The national petroleum reserve in Alaska: Earth-science considerations. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Gryc, George. The National Petroleum Reserve in Alaska: Earth-science Considerations. Washington: United States Department of the Interior, Geological Survey, 1985.

MLA (9th ed.) Citation

Gryc, George. The National Petroleum Reserve in Alaska: Earth-science Considerations. United States Department of the Interior, Geological Survey, 1985.