1. Influence of Month and Season of Calving on Yields of Milk and Fat;Annis;Washington Agr. Expt. Sta., Bull,1959
2. Association of Official Agricultural Chemists. Official and Teneative Methods of Analysis. 8th ed., p. 12. Washington, D. C. 1955.
3. Estimating Solids-not-fat and Protein in Milk from Different Sources Using Percentage Milk Fat, Protein, and Solids-not-fat;Erb;J. Dairy Sci.,1963
4. Lactation Studies. V. Causes in Variation in Fat Percentage;Erb;Washington Agr. Expt. Sta., Circ,1953
5. Lactation Studies. VI. Improving the Accuracy of Longer Testing Intervals and the Accuracy of Current Methods;Erb;Washington Agr. Expt. Sta., Circ,1953