Some economic aspects of tube-well irrigation in H 

 - Chandigarh  The Author India          1971 
 - 144p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engneering
<br/><br/><label>Dewey Class. No.: </label>X9(D24).237.N7, L1