APA (7th ed.) Citation

United States. Department of Agriculture. (1931). Protect white pine from blister rust. GPO.

Chicago Style (17th ed.) Citation

United States. Department of Agriculture. Protect White Pine from Blister Rust. [Washington]: GPO, 1931.

MLA (9th ed.) Citation

United States. Department of Agriculture. Protect White Pine from Blister Rust. GPO, 1931.

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