Pearl, Richard M. . <br/><br/>
How to Know the Minerals and Rocks /  Textual Documents 
Richard M. Pearl. 
 - 1st ed. / 
 - New York :  McGraw - Hill book company ,  C1955. 
 - 192p. :  ill ;  21cm . 
<br/><br/>Index 
<br/><br/><label>Subjects--Index Terms: </label>Geology Minerals and Rocks G-Geology 
<br/><br/><label>Dewey Class. No.: </label>552.1  / P 314 H