Não informado. (2002). Report of the Breeding and Production Organisation. Milk Marketing Board.
Citação do estilo Chicago (17ª ed.)Não informado. Report of the Breeding and Production Organisation. Thames Ditton, Inglaterra: Milk Marketing Board, 2002.
Citação MLA (8ª ed.)Não informado. Report of the Breeding and Production Organisation. Milk Marketing Board, 2002.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.