Koroleva, N. N <br/><br/>
Relation between Ag :  Au ratio and mineral associations 

<br/><br/> <Donation ORSTOM> 
<br/><br/>bibliogr. p. 205 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minéralisation<br/>Or<br/>Argent