Gordon, A. D. Classification : methods for the exploratory analysis of multivariate data / A.D. Gordon - London : Chapman & Hall, 1981 - xii, 193 p. : ill. ; 23 cm. - Monographs on applied probability and statistics . Includes index Bibliography: p.169-182 ISBN: 0412228505 LCCN: 80-042135 Subjects--Topical Terms: Multivariate analysis