Não informado. (2002). Beef Cattle Report. University of Nebraska, Institute of Agricultural and Natural Resources.
Chicago (17e ed.) BronvermeldingNão informado. Beef Cattle Report. Lincoln, Neb: University of Nebraska, Institute of Agricultural and Natural Resources, 2002.
MLA (8e ed.) BronvermeldingNão informado. Beef Cattle Report. University of Nebraska, Institute of Agricultural and Natural Resources, 2002.
Let op: Deze citaties zijn niet altijd 100% accuraat.