1. Nitrogen factors for pork: a reassessment;Analytical Methods Committee;Analyst,1991
2. Nitrogen factors for beef: a reassessment;Analytical Methods Committee;Analyst,,1993
3. Nitrogen factors for sheepmeat. Part 1. Mutton;Analytical Methods Committee;Analyst,1995
4. Nitrogen factors for sheepmeat. Part 2. Lamb meat;Analytical Methods Committee;Analyst,1996
5. Nitrogen factors for chicken meat;Analytical Methods Committee;Analyst,2000