Não informado. (1978). Grain and Feed Journals. Food and Feed Grain Industries Publishing.
Citação do estilo Chicago (17ª ed.)Não informado. Grain and Feed Journals. Chicago, Ill: Food and Feed Grain Industries Publishing, 1978.
Citação MLA (8ª ed.)Não informado. Grain and Feed Journals. Food and Feed Grain Industries Publishing, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.