APA (7th ed.) Citation

Gryc, G. (1985). The national petroleum reserve in Alaska. US Gov. Print Off.

Chicago Style (17th ed.) Citation

Gryc, George. The National Petroleum Reserve in Alaska. Washington: US Gov. Print Off, 1985.

MLA (9th ed.) Citation

Gryc, George. The National Petroleum Reserve in Alaska. US Gov. Print Off, 1985.