United States. Bureau of Plant Industry. (1939). Physiological studies of Jerusalem--artichoke tubers with special reference to rest period. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Plant Industry. Physiological Studies of Jerusalem--artichoke Tubers with Special Reference to Rest Period. [Washington]: [s.n.], 1939.
MLA (9th ed.) CitationUnited States. Bureau of Plant Industry. Physiological Studies of Jerusalem--artichoke Tubers with Special Reference to Rest Period. [s.n.], 1939.
Warning: These citations may not always be 100% accurate.