Landis P H <br/><br/>
Population problems 
Landis P H; Hatt P K 
 - 2 
 - New York  American Book          1948 
 - xii,500p  cm. 
 - American Sociology Series .
<br/><br/> Bibliography chapterwise 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5, J4-;3