Estes, Richard J. <br/><br/>
The social progress of nations / 
Richard J. Estes. 
 - New York:  Praeger,  1984. 
 - 223p.:  ill.;  25 cm. 
<br/><br/>Bibliography: p.211-221 
<br/><br/><label>ISBN: </label>0030595827 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Social indicators