Schreider, Frank. <br/><br/>
Los thunderbirds. 

 - Washington-XXU :   U.S. Information Agency,   1976. 
 - p. 26-31 :   il. 
 - Bimestral 
 - No. 17(1976) 
 - Horizonte Usa ;   No. 17 .
 - U.S. Information Agency. .
<br/><br/><br/>Espaņol.