1. Scheffé, H., J. R. Statist. Soc. B, 20:344 (1958).
2. Scheffé, H., Ibid. 25:235 (1963).
3. Gorman, J.W., and J.E. Hinman, Technometrics 4:463 (1962).
4. Fisher, R.A. and F. Yates, Statistical Tables, Sixth edition, Oliver and Boyd, 1967.
5. Cornell, J.A., Technical Report No. 5, University of Florida, 1970.