Carrel, Todd. <br/><br/>
National geographic,  ;   Vol. 6, no. 3 

 - Washington-XXU  :   National Geographic Society,   2000. 
 - p. 116-137 :   il. 
 - Irregular 
 - Vol. 6, no. 3(Mar. 2000) 
 - National geographic,  ;   Vol. 6, no. 3 .
 - National Geographic Society. .
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