United States. Bureau of Plant Industry, Soils, and Agricultural Engineering. (1944). Market diseases of fruits and vegetables: Beets, endive, escarole, globe artichokes, lettuce, rhubarb, spinach, swiss chard, and sweetpotatoes. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Plant Industry, Soils, and Agricultural Engineering. Market Diseases of Fruits and Vegetables: Beets, Endive, Escarole, Globe Artichokes, Lettuce, Rhubarb, Spinach, Swiss Chard, and Sweetpotatoes. [Washington]: [s.n.], 1944.
MLA (9th ed.) CitationUnited States. Bureau of Plant Industry, Soils, and Agricultural Engineering. Market Diseases of Fruits and Vegetables: Beets, Endive, Escarole, Globe Artichokes, Lettuce, Rhubarb, Spinach, Swiss Chard, and Sweetpotatoes. [s.n.], 1944.