Ndoro, Webber. <br/><br/>
Conservation ;   Vol. 16, no. 3 

 - Los Angeles-XXUZ:  :   Getty Conservation Intitute,   2001. 
 - p. 20-23 :   il. 
 - Cuatrimestral 
 - Vol. 16, no 3(2001).  
 - Conservation ;   Vol. 16, no. 3 .
 - Getty Conservation Intitute. .