1. Egg production versus reproduction in Rhode Island Reds;Hays;Poultry Sci.,1943
2. Net correlations of characters concerned in fecundity;Hays;Massachusetts Agr. Exp. Sta. Tech. Bul.,1927
3. Factors affecting fertility in Rhode Island Reds;Hays;Massachusetts Agr. Exp. Sta. Bul.,1939
4. Correlation studies of egg production and possible genetic interpretations;Knox;J. Agr. Res.,1935
5. The hatchability of chicken eggs as influenced by environment and heredity;Landauer;Storrs Agr. Exp. Sta. Bul.,1948