Guide to national bibliographical information centres 
United Nations Educational, Scientific and Cultural Organization 
 - 3rd. ed. 
 - Paris  United Nations Educational, Scientific and Cultural Organization  1970 
 - 195p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bibliographical services
<br/><br/><label>Dewey Class. No.: </label>A2 Un3