Precious metals 1981 
edited by E.D. Zysk 
 - Toronto  New York  Pergamon Press  c1982 
 - xiv, 461 p.  ill.  26 cm. 
<br/><br/> Proceedings of the 5th International Precious Metals Institute Conference, held in Providence, R.I., June 2-5, 1981 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Precious metals
<br/><br/><label>Dewey Class. No.: </label>669  / .2