1. Correlation between Egg Laying and Yellow pigment in the Domestic Fowl.;Blakeslee;Science N. S.,1915
2. Principles and Practices of Present Culling Methods.;Botsford;Profitable Culling and Selective Flock Breeding. Page 307.,1923
3. Egg Weight in Relation to Production.;Jull;Poultry Science, Vol. III,1924
4. The Correlation of Certain Characteristics with Egg Production.;Knox;Poultry Science, Vol. III,1924
5. Correlation Between the External Characteristics and Annual Egg Production in Single Comb White Leghorn Fowls.;Sherwood;Texas Agr. Exper. Sta. Bul.,1922