APA (7th ed.) Citation

United States. Bureau of Plant Industry & Thompson, R. C. (1930). Kale. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Plant Industry and Ross C. Thompson. Kale. Washington: [publisher not identified], 1930.

MLA (9th ed.) Citation

United States. Bureau of Plant Industry and Ross C. Thompson. Kale. [publisher not identified], 1930.