APA (7th ed.) Citation

United States. Forest Service. Eastern Region, Geological Survey (U.S.), & Geometronics Service Center (U.S.). (1986). Hoosier National Forest, 7.5 minute series (topographic). The Service.

Chicago Style (17th ed.) Citation

United States. Forest Service. Eastern Region, Geological Survey (U.S.), and Geometronics Service Center (U.S.). Hoosier National Forest, 7.5 Minute Series (topographic). Washington, D.C.: The Service, 1986.

MLA (9th ed.) Citation

United States. Forest Service. Eastern Region, et al. Hoosier National Forest, 7.5 Minute Series (topographic). The Service, 1986.