BUREAU OF INDIAN STA <br/><br/>
INDIAN STANDARD SPECIFICATION FOR PARALLEL KEYS AND KEYWAYS. IS : 2048 - 1983 

 - 2nd rev. ed.  1999 
 - NEW DELHI  BUREAU OF INDIAN STANDARDS. 
 - 9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  PARALLEL KEYS AND KEYWAYS
<br/><br/><label>Dewey Class. No.: </label>621  / BUR