Balkansky, Andrew K. <br/><br/>
Urbanism and early state formation in the huamelulpan valley of southern Mexico. 

 - Washington, DC-US :   Society for American Archaeology,   1998. 
 - p. 37-67 :   il 
 - trimestral 
 - Vol.9, no.1(Mar.1998) 
 - Latin American Antiquity ;   vol.9, no.1 .
 - Estados Unidos.   Society for American Archaeology. .