1. A survey of egg quality of two egg laying tests;Brant;U.S.-D.A. Tech Bull.,1953
2. Improving egg quality through Michigan R.O.P. breeders—a progress report;Dawson;Poultry Sci.,1954
3. The Haugh unit for measuring egg quality;Haugh;U. S. Egg Poultry Mag.,1937
4. Changes in pullet year albumen index as affected by age of bird;Jeffrey;Poultry Sci.,1941
5. Factors affecting the quality and grade of Manitoba eggs;Johnson,1946