Geochemical exploration 1972 
/ Proceedings of the fourth.......................................17 to 20 April, 1972 geochemists 
 - London:   The Institution of Mining and Metallurgy,   1973 
 - xiv, 458p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Proceedings
<br/><br/><label>Universal Decimal Class. No.: </label>550.4:550.84](082.2)  / L3