1. Growth rates, their evaluation and significance;Brody;Mo. Res. Bul.,1927
2. Production and hatchability of eggs as affected by different kinds and quantities of proteins in the diet of laying hens;Byerly;Jour. Agr. Res.,1933
3. Some factors affecting the weight of eggs in domestic fowls;Graham;Sci., Agr.,1932
4. Feeds and Feeding;Henry,1928
5. Poultry Breeding;Jull,1932