Tufte, E. R.  <br/><br/>
Quantitative analysis of social problems / 

 - Massachusetts:  Addison-Wesley,  1970 
 - 449p. 
 - Addison-Wesley series in Behavioral Science  : Quantitative method .
<br/><br/><label>ISBN: </label>0201076101 978-0201076103 
<br/><br/><label>Dewey Class. No.: </label>300.183  / T914.QA