1. Recommended Procedures for Use in the Measurement of Beef Cattle and Carcasses;Agricultural Research Council,1965
2. Draft system for the description of carcass of bovine and porcine species;FAO/WHO,1974
3. Draft Organization for Economic Co-operation and Development system for identification of beef, veal and pork carcasses;O.E.C.D.,1965
4. Études sur les qualités des carcasses de bovins et porcins dans les pays de la Communauté Economique Européenne;Weniger,1966
5. The visual description of carcasses;Williams;J. Agric. Sci.,1969