APA (7th ed.) Citation

United States. Forest Service, Oswalt, S. N., Thompson, M. T., & Smith, W. B. (2009). U. S. forest resource facts and historical trends (Rev. July 2009.). U.S. Dept. of Agriculture, Forest Service.

Chicago Style (17th ed.) Citation

United States. Forest Service, Sonja N. Oswalt, Michael T. Thompson, and W. Brad Smith. U. S. Forest Resource Facts and Historical Trends. Rev. July 2009. [Washington, D.C]: U.S. Dept. of Agriculture, Forest Service, 2009.

MLA (9th ed.) Citation

United States. Forest Service, et al. U. S. Forest Resource Facts and Historical Trends. Rev. July 2009. U.S. Dept. of Agriculture, Forest Service, 2009.