Calendar of meetings :  national and international conferences 1979-81 / 
Institute of Petroleum Exploration, Dehra Dun 
 - Dehra Dun :  Institute of Petroleum Exploration,  1984 
 - 9 p. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology
<br/><br/><label>Dewey Class. No.: </label>550.63