Bagchi, T.C., SenGupta, D.K. and Rao, S.V.L.N <br/><br/>
Elements of prospecting and exploration 
Bagchi, T.C., SenGupta, D.K. and Rao, S.V.L.N 
 - New Delhi  Kalyani  1979 
<br/><br/><label>Dewey Class. No.: </label>622.7  / BAG.E