APA (7th ed.) Citation

United States. Bureau of Plant Industry. (1918). Potato black-heart. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Plant Industry. Potato Black-heart. [Washington]: [publisher not identified], 1918.

MLA (9th ed.) Citation

United States. Bureau of Plant Industry. Potato Black-heart. [publisher not identified], 1918.

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