1. Contingency Table Interactions
2. Some Methods for Strengthening the Common χ 2 Tests
3. Doi, A. N. Test for Independence of Four Classifications of a Complex Contingency Table by the Method of the Likelihood Ratio, unpublished M. A. colloquium paper, University of Minnesota, 1952, 44 pp.
4. Fisher, R. A. Statistical Methods for Research Workers, 10th Ed., Revised (New York: Hafner Publishing Co., 1946), 354 pp.
5. NOTE ON AN EXACT TREATMENT OF CONTINGENCY, GOODNESS OF FIT AND OTHER PROBLEMS OF SIGNIFICANCE