1. Some Examples of Statistical Methods of Research in Agriculture and Applied Biology;Bartlett;Roy. Statis. Soc. Jour. Sup.,1936
2. Causes of Differences in Butterfat Production of Cows in Iowa Cow Testing Associations;Plum;Jour. Dairy Sci.,1935
3. Smith, A. D. B., and Robison, O. J. Variation in the Milk Yields of the Daughters of Different Bulls. Internatl. Dairy Cong., Berlin, 1937. Wiss. Ber., 1: 60-63. Spamer a.-g., Leipzig. 1937.
4. Statistical Methods;Snedecor,1940
5. Systems of Matings;Wright;Genetics,1921