Não informado. (1889). Farmers Bulletin. U.S. Department of Agriculture.
Style de citation Chicago (17e éd.)Não informado. Farmers Bulletin. Washington: U.S. Department of Agriculture, 1889.
Style de citation MLA (8e éd.)Não informado. Farmers Bulletin. U.S. Department of Agriculture, 1889.
Attention : ces citations peuvent ne pas être correctes à 100%.