Sixtieth Annual Report April 1991- March 1992 

 - Calcutta  Indian Statistical Institute          1991 
 - 221p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>T9.2,d.N92 - N91r, N2/GD