United States. Bureau of Plant Industry. (1941). Control of sugar-beet nematode by crop rotation. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Plant Industry. Control of Sugar-beet Nematode by Crop Rotation. [Washington]: [s.n.], 1941.
MLA (9th ed.) CitationUnited States. Bureau of Plant Industry. Control of Sugar-beet Nematode by Crop Rotation. [s.n.], 1941.
Warning: These citations may not always be 100% accurate.