Heer, D M <br/><br/>
Economic development and fertility.  [electronic resource] 

 -  Demography  Jun 1966 
 - 423-44 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0070-3370 
<br/><br/><label>Standard No.: </label>10.2307/2060168  doi