TY - GEN AU - Gnanadesikan R TI - Methods for srtatistical data analysis of multivariarte observations T2 - Wiley series in probability and statistics SN - 0-471-16119-5 U1 - 519. 535 GNA CY - NewYork, John Wiley & Sons INC KW - Probability/statistics/elliptical distributions/clustring ER -