Optium factor combination in agriculture   A progra    

 - Delhi  University of Delhi          1991 
 - 91 Bibliography chapterwise: P  cm. 
 - University of Delhi, Economics (Deptt. of-), Thesis. Thesis, University of Delhi, Economics (Deptt. of- .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural Economics