1. Rao, C. R., Nature, 160, 835 (1947).
2. Rao, C. R., Advanced Statistical Methods in Biometric Research, 370 (John Wiley and Sons, Inc., New York, 1952).
3. Rao, C. R., J. Roy. Stat. Soc., B, 10, 159 (1948).
4. Ashton, E. H., Healy, M. J. R., and Lipton, S., Proc. Roy. Soc., B, 146, 552 (1957).
5. McGuire, J. U., and Wirth, W. W., Proc. Tenth Intern. Cong. Entom., 1, 387 (1958).