I.T.C  <br/><br/>
Certification Principles & Practice 

 - Geneva  Uncted  1980 
 - 168 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>Certification Principles & Practice
<br/><br/><label>Dewey Class. No.: </label>658.5  / ITC