Ubelaker, Douglas H. <br/><br/>
Elemental analysis of alkalis and dental deposits associated with coca chewing in Ecuador. 

 - Washington, DC-US :   Society for American Archaeology,   2006. 
 - p. 77-89 :   il 
 - trimestral 
 - Vol.17, no.1(Mar.2006) 
 - Latin American Antiquity ;   vol.17, no.1 .
 - Estados Unidos.   Society for American Archaeology. .
<br/><br/> Articulo dentro de reports.