Theodorson, George A. <br/><br/>
Estudios de ecología humana 

 - Barcelona  Editorial Labor  1974 
 - 2 v.  ill. 
<br/><br/> Translation of : Studies in human ecology. 
<br/><br/>Includes bibliography 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology<br/>Man--Influence of environment.