Não informado. (1975). Cotton and wool situation. U.S. Department of Agriculture, Economic Research Service.
Citação do estilo Chicago (17ª ed.)Não informado. Cotton and Wool Situation. Washington: U.S. Department of Agriculture, Economic Research Service, 1975.
Citação MLA (8ª ed.)Não informado. Cotton and Wool Situation. U.S. Department of Agriculture, Economic Research Service, 1975.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.