Indian Standards Institution, New Delhi <br/><br/>
Indian standard presentation of statistical data   

 - New Delhi  The Auth. 
 - 
 - IS  7200 Part I - 1981, IS 7200 1(Part II) - 1975 .
<br/><br/>  
<br/><br/><label>Dewey Class. No.: </label>519.5  / In39.PS