Não informado. (1981). Dairy and food sanitation. International Association of Milk, Food and Environmental Sanitarians.
Citação do estilo Chicago (17ª ed.)Não informado. Dairy and Food Sanitation. Ames, Iowa: International Association of Milk, Food and Environmental Sanitarians, 1981.
Citação MLA (8ª ed.)Não informado. Dairy and Food Sanitation. International Association of Milk, Food and Environmental Sanitarians, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.