APA (7th ed.) Citation

United States. Forest Service. Northern Region. (1997). Air Resource Management Program: Region 1. [Region 1, U.S. Forest Service].

Chicago Style (17th ed.) Citation

United States. Forest Service. Northern Region. Air Resource Management Program: Region 1. [Missoula, Mont.]: [Region 1, U.S. Forest Service], 1997.

MLA (9th ed.) Citation

United States. Forest Service. Northern Region. Air Resource Management Program: Region 1. [Region 1, U.S. Forest Service], 1997.