United States. Forest Service. Land areas of the national forest system as of. The Service.
Chicago Style (17th ed.) CitationUnited States. Forest Service. Land Areas of the National Forest System As of. [Washington, D.C.?]: The Service.
MLA (8th ed.) CitationUnited States. Forest Service. Land Areas of the National Forest System As of. The Service.
Warning: These citations may not always be 100% accurate.