Kerr, Paul F. (Paul Francis), 1897-, <br/><br/>
Optical mineralogy / 
Paul F. Kerr. 
 - Third edition. 
 - xiv, 442 pages :   illustrations ;   24 cm. 
<br/><br/> 'Previous editions by Austin F. Rogers and Paul F. Kerr.' 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Optical mineralogy.