Mayor, Federico. <br/><br/>
Message from the Director-General to readers of Museum on its fortieth anniversary. 

 - Paris-FR  :   Unesco,   1989. 
 - p. 131 
 - Trimestral 
 - Vol. XLI, no. 163-3 (1989) 
 - Museum ;   no. 163-3 .
 - Francia.   Unesco. .
<br/><br/> Museum at forty.