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2. Copeland, Lynn. What is required to prove a bull? Jersey Bull., 51(1) : 7-8, 28, and 30-32. 1932.
3. The irrogeny test as a method of evaluating the dairy sire;Edwards;J. Agr. Sci.,1932
4. The mode of inheritance of yearly butterfat production;Gifford;Mo. Agr. Exp. Sta., Res. Bull,1930
5. The value of a sire;Gifford;Guernsey Breeders’ J.,1930