David, G. W. (1988). Practice beef quality grading. Lubbock: Creative Educational Video.
Chicago Style CitationDavid, Gordon W. Practice Beef Quality Grading. Lubbock: Creative Educational Video, 1988.
Cita MLADavid, Gordon W. Practice Beef Quality Grading. Lubbock: Creative Educational Video, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.
      