1. Association of Official Agricultural Chemists, 1964. Collaborative Procedure for the Determination of Xanthophylls in Feedstuffs. P.O. Box 540, Washington, D.C.
2. Marketing Poultry Products;Benjamin,1937
3. A study of certain factors that influence pigmentation in broilers.;Day;Poultry Sci.,1958
4. Multiple range and multiple F tests.;Duncan;Biometrics,,1955
5. Pigmentation studies with broilers and laying hens.;Elrod;Feedstuffs,,1958