Bader, Mary Ann. <br/><br/>
Horizonte Usa ;   No. 22 

 - Washington-XXU :   U.S. Information Agency,   1977. 
 - p. 59-65 :   il. 
 - Bimestral 
 - No. 22(1977) 
 - Horizonte Usa ;   No. 22 .
 - U.S. Information Agency. .