1. The Nutrient Requirements of Farm Livestock, No. 2 Ruminants Technical Reviews and Summaries;Agricultural Research Council,1965
2. Recent NAAS investigations into laboratory methods of estimating the feeding value of hays;Alderman,1966
3. An Introduction to Genstat;Alvey,1982
4. New methods of forage evaluation;Barber,1984
5. Effects of nitrogen on herbage yields of timothy harvested at various developmental stages;Bonin;Can. J. Plant Sci.,1968