Powers, Daniel A. Statistical methods for categorical data analysis / Daniel A. Powers. - 2nd. ed. - United Kingdom : Emerald Group Publishing, 2008. - xvii, 317 p. : ill. ; 25 cm. Includes bibliographical references (p. [297]-306) and index. ISBN: 9780123725622 RM184.06 Subjects--Topical Terms: Multivariate analysis.