APA (7th ed.) Citation

United States. Forest Service. (2019). Marietta Unit map. [U.S. Forest Service].

Chicago Style (17th ed.) Citation

United States. Forest Service. Marietta Unit Map. [Nelsonville, Ohio]: [U.S. Forest Service], 2019.

MLA (9th ed.) Citation

United States. Forest Service. Marietta Unit Map. [U.S. Forest Service], 2019.

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