Não informado. (1934). News for farmer cooperatives. Department of Agriculture, Farmers Cooperative Service.
Citação do estilo Chicago (17ª ed.)Não informado. News for Farmer Cooperatives. Washington: Department of Agriculture, Farmers Cooperative Service, 1934.
Citação MLA (8ª ed.)Não informado. News for Farmer Cooperatives. Department of Agriculture, Farmers Cooperative Service, 1934.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.