Everitt, Brian. Cluster analysis. - 4th ed. / Brian S. Everitt, Sabine Landau, Morven Leese. - London : New York : Arnold ; Oxford University Press, 2001. - viii, 237 p. : ill. ; 25 cm. ISBN: 0340761199 LCCN: 2001278254 Subjects--Topical Terms: Cluster analysis. LC Class. No.: QA278 / .E9 2001 Dewey Class. No.: 519.5