Tyrrell, G. W.  1883- <br/><br/>
The principles of petrology :  An introduction to the science of rocks / 
G. W. Tyrrell. 
 - London :  Chapman and hall,  1926[Reprinted 1967,1975, 1977]. 
 - 349 p. ;  20 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>041211500X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrology.
<br/><br/><label>Dewey Class. No.: </label>552  / TYP 1975