DARE ; Information management system :  a condensed system description . 

 - Paris :  UNESCO,  1975. 
 - 23 p. ;  fig. 
 - Reports and papers in the social sciences ;  31. .
<br/><br/><label>ISBN: </label>9231012568 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>OC 002.6: 3 (100)=20 DAR No. 31