Berman, Ronald. <br/><br/>
Facetas ;   No. 61 

 - Washington-XXU :   International Communicational Agency United States of America,   1983. 
 - p. 70-72 :   il. 
 - Trimestral 
 - No. 61(1983).  
 - Facetas ;   No. 61 .
 - International Communicational Agency United States of America. .