Small, Christopher. <br/><br/>
Continental Physiography, Climate, and the Global Distribution of Human Population. 

 - Chicago-US :   Department of Human Sciences,   2004. 
 - p. 269-277 
 - Trimestral 
 - Vol.45, no.2 (Apr. 2004) 
 - Current Anthropolgy ;   vol. 45 no. 2 .
 - Estados Unidos.   The University of Chicago Press. .
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