1. Effect of percentage of protein in the diet on growth and feed utilization of male chickens;Hammond;J. Agric. Res.,1938
2. Protein in poultry nutrition—a review;Heuser;Poultry Sci.,1941
3. A study of protein requirements of growing chicks;McConachie;Sci. Agric.,1935
4. Protein requirements of growing chicks;Milne;Sci. Agric.,1932