Não informado. (2002). Beef Cattle Report. University of Nebraska, Institute of Agricultural and Natural Resources.
Lua i Stíl Chicago (17ú heag.)Não informado. Beef Cattle Report. Lincoln, Neb: University of Nebraska, Institute of Agricultural and Natural Resources, 2002.
Lua MLA (8ú heag.)Não informado. Beef Cattle Report. University of Nebraska, Institute of Agricultural and Natural Resources, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.