United States. Office of Experiment Stations. (1916). How teachers may use Farmers' Bulletin 690, Field pea as forage crop. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Office of Experiment Stations. How Teachers May Use Farmers' Bulletin 690, Field Pea as Forage Crop. Washington: U.S. GPO, 1916.
MLA (9th ed.) CitationUnited States. Office of Experiment Stations. How Teachers May Use Farmers' Bulletin 690, Field Pea as Forage Crop. U.S. GPO, 1916.
Warning: These citations may not always be 100% accurate.