Gnanadesikan, R. Methods for statistical data analysis of multivariate observations / R. Gnanadesikan. - New York : John Wiley & Sons, 1977. - x, 311 p. : ill. ; 24 cm. - Wiley series in probability and mathematical statistics . Includes index. Bibliography : p. 287-296. ISBN: 0471308455 Subjects--Topical Terms: Multivariate analysis