1. Yield, Chemical Composition and Feeding Value for Milk Production of Alfalfa Hay Cut at Three Stages of Maturity;Dawson;U. S. Dept. Agr. Tech. Bul.,1940
2. Estimates of Producing Ability in Dairy Cattle;Dickebson;Jour. Agr. Res.,1940
3. Methods of Correlation Analysis;Ezekiel,1930
4. Live Weight and Milk-Energy Yield in Czechoslovak Cows;Gaines;Jour. Dairy Sci.,1940
5. Live Weight of Cow at Various Stages of Lactation in Relation to Milk-Energy Yield;Gaines;Jour. Dairy Sci.,1941