Pearl, Richard Maxwell,  1913- <br/><br/>
How to know the minerals and rocks / 
by Richard M. Pearl. 
 - New York :  New American Library,  1955. 
 - viii, 192 p. ;  18 cm. 
<br/><br/> 'A Signet key book' 
<br/><br/>Includes bibliographical references (187-188) and index. 
<br/><br/><label>ISBN: </label>6707049021 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineralogy, Determinative.<br/>Rocks--Identification.