Jennings, Justin. <br/><br/>
Description and method of exploitation of the alca obsidian source, Peru. 

 - Washington, DC-US :   Society for American Archaeology,   2002. 
 - p. 107-118 :   il 
 - trimestral 
 - Vol.13, no.1(Mar.2002) 
 - Latin American Antiquity ;   vol.13, no.1 .
 - Estados Unidos.   Society for American Archaeology. .
<br/><br/> Articulo dentro de reports.