Não informado. (1963). World agricultural production and trade. U.S. Department of Agriculture, Foreign Agricultural Service.
Cita Chicago Style (17a ed.)Não informado. World Agricultural Production and Trade. Washington: U.S. Department of Agriculture, Foreign Agricultural Service, 1963.
Cita MLA (8a ed.)Não informado. World Agricultural Production and Trade. U.S. Department of Agriculture, Foreign Agricultural Service, 1963.
Precaución: Estas citas no son 100% exactas.