Brazil Gold'91 : the economics, geology, geochemistry and genesis of gold deposits :  proceedings of the Symposium Brazil Gold'91, Beb Horizonte, MG, 13-17 May 1991 / 
edited by E. A. Ladeira 
 - Rotterdam :  A. A. Balkema,  1991 
 - 823 p. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gold ores--Congresses<br/>Gold mines and mining--Congresses