Não informado. (1907). Proceedings of the American Society of Agronomy. American Society of Agronomy.
Style de citation Chicago (17e éd.)Não informado. Proceedings of the American Society of Agronomy. Washington: American Society of Agronomy, 1907.
Style de citation MLA (8e éd.)Não informado. Proceedings of the American Society of Agronomy. American Society of Agronomy, 1907.
Attention : ces citations peuvent ne pas être correctes à 100%.