McCurdy, Warren W. <br/><br/>
Por si las moscas... 

 - Washington-XXU :   U.S. Information Agency,   1978. 
 - p. 30-33 :   il. 
 - Bimestral 
 - No. 25(1978) 
 - Horizonte Usa ;   No. 25 .
 - U.S. Information Agency. .
<br/><br/><br/>Espaņol.