Symposium on earth's near space environment 
/ 18-21 February, 1975 National Physical Laboratory, New Delhi-110012 
 - Delhi:   INSDOC,   1975 
 - 11.35p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Symposium
<br/><br/><label>Universal Decimal Class. No.: </label>550.388(082.2)  / L5