Filing and indexing    a Pitman programmed  text 

 - London  Pitman         1971 
 - 152p.  cm. 
<br/><br/><label>Standard No.: </label>136,660 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECONOMICS
<br/><br/><label>Dewey Class. No.: </label>X:8M8, L1 (RR)