Não informado. (2004). Foreign crops and markets. U.S. Department of Agriculture, Foreign Agricultural Service.
Cita Chicago Style (17a ed.)Não informado. Foreign Crops and Markets. Washington: U.S. Department of Agriculture, Foreign Agricultural Service, 2004.
Cita MLA (8a ed.)Não informado. Foreign Crops and Markets. U.S. Department of Agriculture, Foreign Agricultural Service, 2004.
Precaución: Estas citas no son 100% exactas.