Edgar. F Borgatta <br/><br/>
Aggregate Data : Analysis and Interpretation 

 - California  Sage Publications Inc  1980 
 - 191p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-8039-1429-6 
<br/><br/><label>Dewey Class. No.: </label>519.50243  / BOR