Cox K G <br/><br/>
Introdunction to the practical study of crystals, minerals and rocks 

 -  1967 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>44157 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Geology<br/> Minerals<br/> Rocks<br/>Crystal
<br/><br/><label>Dewey Class. No.: </label>H, K71;1