Filing and Indexing 

 - England  Unwin Brothers Limited   1971 
 - 76p  15cm 
<br/><br/> Programmed Learning.<br/>The Alphabetical Sustem.<br/>Maintaining Files 
<br/><br/><label>ISBN: </label>0273314564 
<br/><br/><label>Dewey Class. No.: </label>029.5 P685f