Hlusko, Leslea J. <br/><br/>
The Oldest Hominid Habit? Experimental Evidence for Toothpicking with Grass Stalks. 

 - Chicago-US :   Department of Human Sciences,   2003. 
 - p.738-741 
 - Trimestral 
 - Vol.44, no.5 (Dec. 2003) 
 - Current Anthropolgy ;   vol. 44 no. 5 .
 - Estados Unidos.   The University of Chicago Press. .
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