Ernst, W. G. <br/><br/>
Earth materials / 
W.G. Ernst. 
 - Englewood Cliffs, NJ :  Prentice-Hall,  c1969. 
 - viii, 149 p. :  ill. ;  24 cm. 
 - Foundations of earth science series .
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 144. 
<br/><br/><label>LCCN: </label>69-11168 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minerals.<br/>Rocks, Sedimentary.<br/>Mineralogy.<br/>Petrology.<br/>Mineral industries.