Valdés, L M <br/><br/>
[Not Available].  [electronic resource] 

 -  Demografia y economia  1980 
 - 467-80 p.  digital 
<br/><br/> Publication Type: English Abstract; Historical Article; Journal Article 
<br/><br/><label>ISSN: </label>0185-0148 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Demography<br/>History, Modern 1601-<br/>Mexico<br/>Statistics as Topic--history