APA (7th ed.) Citation

United States geological highway map series. American Ass. of Petroleum Geologists.

Chicago Style (17th ed.) Citation

United States Geological Highway Map Series. Tulsa, Okl: American Ass. of Petroleum Geologists.

MLA (9th ed.) Citation

United States Geological Highway Map Series. American Ass. of Petroleum Geologists.

Warning: These citations may not always be 100% accurate.