Alexander, George. <br/><br/>
Anatom¡a de los terremotos. 

 - Washington-XXU :   International Communicational Agency United States of America,   1983. 
 - p. 34-37 
 - Trimestral 
 - No. 60(1983).  
 - Facetas ;   No. 60 .
 - International Communicational Agency United States of America. .
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