Langbein Laura Irwin <br/><br/>
Ecological inference 
Langbein Laura Irwin; Lichtman Allan J 
 - Beverly  Hills Sage           1978 
 - 70p.  cm. 
 - Quantitative Applications in the Social Sciences. 10 .
<br/><br/> Bibliography : 66-70 
<br/><br/><label>ISBN: </label>00803904101 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics
<br/><br/><label>Dewey Class. No.: </label>B280bE, L8