http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Professional Rodeo Cowboys Association media guide
Official professional rodeo media guide (Colorado Springs, Colo. : 1990)
Professional Rodeo Cowboys Association (U.S.)
Professional Rodeo Cowboys Association, 101 Pro Rodeo Drive, Colorado Springs, CO 80919