Não informado. (1989). AgExporter. U.S. Department of Agriculture, Foreign Agricultural Service.
Style de citation Chicago (17e éd.)Não informado. AgExporter. Washington: U.S. Department of Agriculture, Foreign Agricultural Service, 1989.
Style de citation MLA (8e éd.)Não informado. AgExporter. U.S. Department of Agriculture, Foreign Agricultural Service, 1989.
Attention : ces citations peuvent ne pas être correctes à 100%.