WORLD GUIDE TO TECHNICAL INFORMATION AND DOCUMENTATION SERVICES: guide mondial d 

 - 2nd edition 
 - Paries  Unesco press  1975 
 - 515 p. 
<br/><br/> includes index 
<br/><br/><label>ISBN: </label>9230012289 
<br/><br/><label>Dewey Class. No.: </label>10  / UNE