Telecommunications services :  A complete guide - 2020 edition Practical tools for self assessment 

 - Paris :  [Washington, D.C. :  Organisation for Economic Co-operation and Development ;  OECD Publications and Information Centre, distributor], 
 - 303 p. :  23 cm. 
 - Information, computer, communications policy ; .
<br/><br/>Bibliography: p. 263-303. 
<br/><br/><label>LCCN: </label>88210905  
<br/><br/><label>Dewey Class. No.: </label>658.403