APA (7th ed.) Citation

Geological Survey (U.S.) & Geological Survey (U.S.). National Mapping Division. (1991). Arkansas: Index to topographic and other map coverage. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Geological Survey (U.S.). National Mapping Division. Arkansas: Index to Topographic and Other Map Coverage. Reston, Va.: The Survey, 1991.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Geological Survey (U.S.). National Mapping Division. Arkansas: Index to Topographic and Other Map Coverage. The Survey, 1991.