McKiernan, Bill; Gaden,Bob and Sundstrom, Brian (January 2007). "Dressing percentages for cattle"(PDF). Australian Dept. of Prime Industries. Retrieved October 8, 2012.{{cite web}}: CS1 maint: multiple names: authors list (link)
state.ok.us
oda.state.ok.us
"How Much Meat?"(PDF). Oklahoma Dept. of Agriculture, Food and Forestry. Retrieved October 8, 2012.