Schultz <br/><br/>
Research in population economics 

<br/><br/><label>ISBN: </label>SL01026619 
<br/><br/><label>Standard No.: </label>193505 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>Y:50aX, N1.7