Não informado. (1945). Agriculture abroad. Department of Agriculture, Economics Division of the Marketing Service.
Cita Chicago Style (17a ed.)Não informado. Agriculture Abroad. Ottawa: Department of Agriculture, Economics Division of the Marketing Service, 1945.
Cita MLA (8a ed.)Não informado. Agriculture Abroad. Department of Agriculture, Economics Division of the Marketing Service, 1945.
Precaución: Estas citas no son 100% exactas.