Jones, W. R. (William Richard), 1880-  Jones, W. R. (William Richard), 1880- <br/><br/>
Minerals in industry / 
W.R. Jones. 
 - 3rd ed. 
 - Harmondsworth, England :  Penguin Books,  1955. 
 - Pelican books ;  A123 .
<br/><br/> Includes index of minerals. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources -- Zambia--Mines and mineral resources -- Zambia