00341nam a2200133Ia 4500082002400000100001900024245002300043250000900066260002800075300002100103490007300124500000500197700000500202  a519.530243bEv93.CA  aEveritt, Brian  aCluster analysisb  a2nd.  aLondonbHeinemannc1980  avii, 136p. Index  aSocial Science Research Council, reviews of current researchv no.11  a  a