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Early maya adaptive patterns :   Mid-late holocene paleoenvironmental evidence from pacific Guatemala. 

 - Washington, DC-US :   Society for American Archaeology,   2006. 
 - p. 287-315 :   il 
 - trimestral 
 - Vol.17, no.3(Sep.2006) 
 - Latin American Antiquity ;   vol.17, no.3 .
 - Estados Unidos.   Society for American Archaeology. .