Contributions in environmental geology : 
Geological survey of India , Calcutta (India) 
 - ii:  The Director General,  1996 
 - 268 :  Map. ill ;  28 cm. 
<br/><br/> Special poblication no. 43 
<br/><br/>Index present 
<br/><br/><label>ISBN: </label> Rs.151  0254-0436 
<br/><br/><label>Dewey Class. No.: </label>551.4(54)