Environmental Aspects of Selected non-ferrous Metals (Cu, Ni, Pb, Zn, Au) ore mining :   A Technical Guide 
United Nations 
 - New York  United Nations  1991 
 - 116p 
<br/><br/><label>ISBN: </label>928071295X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Non-Ferrous Metals
<br/><br/><label>Dewey Class. No.: </label>363.731  / ENV.N1