1. Methods of Vitamin Assay 1947
2. BURKHOLDER, P.R., YALE J BIOL MED 16: 659 (1944).
3. DITZLER, L, EFFECT OF HEREDITY ON THE NIACIN AND PANTOTHENIC ACID CONTENT OF CORN, CEREAL CHEMISTRY 25: 273 (1948).
4. HUNT, C. H., CEREAL CHEMISTRY 27: 150 (1950).
5. RICHEY, F.D., A SURVEY OF THE POSSIBILITIES AND METHODS OF BREEDING HIGH-NIACIN CORN (MAIZE), PLANT PHYSIOLOGY 23: 238 (1948).