Não informado. (2002). Beef Cattle Report. University of Nebraska, Institute of Agricultural and Natural Resources.
Citação do estilo Chicago (17ª ed.)Não informado. Beef Cattle Report. Lincoln, Neb: University of Nebraska, Institute of Agricultural and Natural Resources, 2002.
Citação MLA (8ª ed.)Não informado. Beef Cattle Report. University of Nebraska, Institute of Agricultural and Natural Resources, 2002.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.