1. Association of Official Agricultural Chemists. Official Methods of Analysis. 8th ed. Washington, D.C. 1955.
2. Determination of N,N′-Diphenyl-p-phenylenediamine (DPPD) in Milk by Paper Chromatography;Dehority;J. Chromatography,1959
3. Relative Effectiveness of Various Antioxidants Fed to Lactating Dairy Cows on Incidence of Copper-Induced Oxidized Milk Flavor and on Apparent Carotene and Tocopherol Utilization;DeLuca;J. Dairy Sci.,1957
4. The Energy Basis of Measuring Milk Yield in Dairy Cows;Gaines;Illinois Agr. Expt, Sta., Bull.,1928
5. Lucas, H. L. Design and Analysis of Feeding Experiments with Milking Dairy Cattle. Inst. of Statistics, Univ. of North Carolina, Mimeo. Series No. 18. 1948.