New techniques in pig carcass evaluation : proceedings of the EAAP-symposium of the Commission on pig production, Helsinki, Finland, 1 July 1988 / J. F. O'Grady, comp

New techniques in pig carcass evaluation : proceedings of the EAAP-symposium of the Commission on pig production, Helsinki, Finland, 1 July 1988 / J. F. O'Grady, comp