Dhawan, B D <br/><br/>
Economics of groundwater irrigation in hard rock regions 

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 - Agricole Publishing Academy, New Delhi  1986 
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<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industrial economics
<br/><br/><label>Dewey Class. No.: </label>338.6  DHA-E