Mahalanobis P C <br/><br/>
National Sample Survey No 11 Report on the Sample Survey of M G Industries 1949- 1950 

 -  Govt of Ind, Calcutta 
 - pp 36;   28*22 
<br/><br/><label>Dewey Class. No.: </label>B2817t4.2/N58.11/B08844