References
- Finney , D. J. 1964 . Statistical Method in Biological Assay , London : Charles Griffin & Co. Ltd. .
- Fisher , R. A. 1936 . The Use of Multiple Measurements in Taxonomic Problems . Ann. Eugen. , 7 : 179 – 88 .
- Hope , K. 1968 . Methods of Multivariate Analysis , London : University of London Press Ltd. .
- Sokal , R. and Rohlf , F. J. 1969 . Biometry , San Francisco : W. H. Freeman & Co. .