Ehrenberg, A. S. C. <br/><br/>
Data reduction :  analysing and interpreting statistical data / 
A. S. C. Ehrenberg. 
 - London :  John Wiley,   1978. 
 - xvii, 391 p. :  ill. ;  23 cm. 
<br/><br/>Includes references & indexes. 
<br/><br/><label>ISBN: </label>0471233986 (pbk.) 
<br/><br/><label>LCCN: </label>74003724  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data reduction.<br/>Mathematical statistics.<br/>Statistics.
<br/><br/><label>LC Class. No.: </label>QA276  / .E34 
<br/><br/><label>Dewey Class. No.: </label>519.5  / EHR