1. Combs, G. F., and J. L. Nicholson, 1958. Corn fermentation solubles, tranquilizers, C/P ratio and protein supplements tested with sexes separated. Feedstuffs, November 22, pp. 18-19.
2. A new approach to poultry feed formulation;Combs;Maryland Agr. Exp. Sta. Misc. Pub.,1955
3. Glycine in broiler nutrition;Douglas;Poultry Sci.,1958
4. Multiple range and multiple F tests;Duncan;Biometrics,1955
5. A general method of calculating amino acid requirements of the broiler;Gordon;Poultry Sci.,1956