BUREAU OF INDIAN STA <br/><br/>
INDIAN STANDARD PREFERRED NUMBERS : PART 3 GUIDE TO THE CHOISE OF SERIES OF PREFERRED NUMBERS AND OF 

 - 2nd rev. ed.  1985 
 - NEW DELHI  BUREAU OF INDIAN STANDARDS. 
 - 9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  PREFERRED NUMBERS
<br/><br/><label>Dewey Class. No.: </label>621  / BUR