Fisher, Daniel C.. <br/><br/>
Tusks Tell the tale :   The secret may be in the Largest teeth of the Animal Kingdom. 

 - Oregon-XXU :   The Leach Publishing Group,   1999. 
 - p. 38 :   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.