Kaufman, Leonard <br/><br/>
Finding groups in data :  an introduction to cluster analysis / 
Leonard Kaufman, Peter J. Rousseeuw 
 - New York :  John Wiley & Sons,  1990 
 - xiv, 342 p. :  ill. ;  24 cm. 
 - Wiley series in probability and mathematical statistics. Applied probability and statistics ;  0271-6356 .
<br/><br/> 'A Wiley-Interscience publication.'  Includes index 
<br/><br/>Bibliography : p. 320-331 
<br/><br/><label>ISBN: </label>0471878766 
<br/><br/><label>LCCN: </label>89-031460 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cluster analysis