Cornish, Graham P. <br/><br/>
The Role of national libraries in the new information environment / 
by Graham P. Cornish. 
 - Paris :  UNESCO,  1991. 
 - 96 p. 
 - PGI-91/WS/4 .
<br/><br/> Incluye bibliografía 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>027.54 (100)=20 "1991" COR