APA (7th ed.) Citation

United States. Forest Service. (1972). Forest insect and disease conditions in the United States.

Chicago Style (17th ed.) Citation

United States. Forest Service. Forest Insect and Disease Conditions in the United States. [Washington], 1972.

MLA (8th ed.) Citation

United States. Forest Service. Forest Insect and Disease Conditions in the United States. 1972.

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