APA (7th ed.) Citation

United States. Forest Service. (1989). Northern Region national forests and grasslands outdoor recreation guide. U.S. Dept. of Agriculture, Forest Service.

Chicago Style (17th ed.) Citation

United States. Forest Service. Northern Region National Forests and Grasslands Outdoor Recreation Guide. [Missoula, Mont.]: U.S. Dept. of Agriculture, Forest Service, 1989.

MLA (9th ed.) Citation

United States. Forest Service. Northern Region National Forests and Grasslands Outdoor Recreation Guide. U.S. Dept. of Agriculture, Forest Service, 1989.