Cannon, Lou. <br/><br/>
Horizonte Usa ;   No. 34 

 - Washington-XXU :   U.S. Information Agency,   1979. 
 - p. 62-65 :   il. 
 - Bimestral 
 - No. 34(1979) 
 - Horizonte Usa ;   No. 34 .
 - U.S. Information Agency. .