Haynes Jr., C. Vance. <br/><br/>
Bat weather and good hunters :   Humans, drought, and a cold Snap combined to finish the Giants. 

 - Oregon-XXU :   The Leach Publishing Group,   1999. 
 - p. 52 :   il. 
 - Bimestral 
 - Vol. I, no. 5, (Sep./Oct. 1999) 
 - Discovering Archaeology ;   no. 5 .
 - Estados Unidos.   The Leach Publishing Group. .
<br/><br/><br/>Art¡culo en inglés.