Economics of tracter cultivation in punjab for the year 1957-57 

 - punjab  Economic and stat organigation         1957 
 - vii,86p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X9(j:1:2).243.N58<-- N57, K1