United States. Bureau of Plant Industry. (1906). Cooperative experiments with forage crops, autumn of 1906 to spring of 1907. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Bureau of Plant Industry. Cooperative Experiments with Forage Crops, Autumn of 1906 to Spring of 1907. Washington, D.C.: [publisher not identified], 1906.
MLA (9th ed.) CitationUnited States. Bureau of Plant Industry. Cooperative Experiments with Forage Crops, Autumn of 1906 to Spring of 1907. [publisher not identified], 1906.
Warning: These citations may not always be 100% accurate.