UNESCO:Bibliothekswesen C 129.313 flJ 

Working-document.organization United.Nations.United 
Nations educational,scientific and 
cultural Organization. Working Document. In 
co-operation with ,.the .International Federation 
for Documentation" the. International Federation 
of~Library Associations and the 
International Councilon Archiv8s.-Paris: 
Unesco 1974. 50 S'., 5 ·gez.Bl. 4