Donoghue, Michael O <br/><br/>
The encyclopedia of minerals & gemstones 

 - London  Orbis   1976 
 - 304p., ill.,  28 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedia of minerals & gemstones
<br/><br/><label>Universal Decimal Class. No.: </label>549(03)  / ENG