APA (7th ed.) Citation

United States. Forest Service. (1980). Cartographic specifications and symbols handbook. The Service.

Chicago Style (17th ed.) Citation

United States. Forest Service. Cartographic Specifications and Symbols Handbook. Washington, D.C.: The Service, 1980.

MLA (9th ed.) Citation

United States. Forest Service. Cartographic Specifications and Symbols Handbook. The Service, 1980.

Warning: These citations may not always be 100% accurate.