United States. Forest Service. Northern Region & Geometronics Service Center (U.S.). (1987). Interagency visitor map, southwest Montana: 1987 (Revisions and additions.). The Office.
Chicago Style (17th ed.) CitationUnited States. Forest Service. Northern Region and Geometronics Service Center (U.S.). Interagency Visitor Map, Southwest Montana: 1987. Revisions and additions. [Missoula]: The Office, 1987.
MLA (9th ed.) CitationUnited States. Forest Service. Northern Region and Geometronics Service Center (U.S.). Interagency Visitor Map, Southwest Montana: 1987. Revisions and additions. The Office, 1987.
Warning: These citations may not always be 100% accurate.