Pirsson, Louis V.  1860-1919. <br/><br/>
Rocks and rock minerals  / 
by Louis V. Pirsson ; revised by Adolp h Knopf. 
 - 3rd ed. 
 - New York :  John Wiley,  1966. 
 - vii, 349 p. :  ill ;  24  cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minerals.<br/>Rocks.
<br/><br/><label>Dewey Class. No.: </label>549 PIR