Encyclopaedia of mineral exploration & ore petrology / 
Gilbert Smith, editor. 
 - USA :  Nyx Academics LLC,  2012. 
 - 5 v. :  ill. ;  24 cm. 
<br/><br/>Includes index and bibliography : p. 259-262. 
<br/><br/><label>ISBN: </label>9781621581369 (set)  RM2335.31 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources--Encylopaedia.<br/>Ores--Encylopaedia.<br/>Petrology--Encylopaedia.