Willey, Goedon R. <br/><br/>
Styles and state formations. 

 - Washington, DC-US :   Society for American Archaeology,   1999. 
 - p.86-90 :  
 - trimestral 
 - Vol.10, no.1(Mar.1999) 
 - Latin American Antiquity ;   vol.10, no.1 .
 - Estados Unidos.   Society for American Archaeology. .
<br/><br/> Articulo dentro de comments.