Não informado. (1942). Foreign agriculture report. U.S. Department of Agriculture, Foreign Agricultural Service.
Citação do estilo Chicago (17ª ed.)Não informado. Foreign Agriculture Report. Washington: U.S. Department of Agriculture, Foreign Agricultural Service, 1942.
Citação MLA (8ª ed.)Não informado. Foreign Agriculture Report. U.S. Department of Agriculture, Foreign Agricultural Service, 1942.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.