Origin and distribution of the elements  proceedings of the second symposium Paris, May 1977, published with financial help from UNESCO, Paris 
editor, L.H. Ahrens editorial assistant, G. Protas. 
 - Oxford  Pergamon Press  1979. 
 - 909 pages :  illustration ;  26 cm. 
 - International series in earth sciences  11 .
<br/><br/><label>ISBN: </label>0080229476 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geochemistry--Congresses