International Dairy Federation. (1991). International Dairy Journal. Elsevier Applied Science.
Citação do estilo Chicago (17ª ed.)International Dairy Federation. International Dairy Journal. Barking, Inglaterra: Elsevier Applied Science, 1991.
Citação MLA (8ª ed.)International Dairy Federation. International Dairy Journal. Elsevier Applied Science, 1991.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.