Tyrrell, G. W.  1883- <br/><br/>
The principles of petrology :  an introduction to the science of rocks / 
by G.W. Tyrrell. 
 - (2rd ed.). 
 - London :  Chapman & Hall,  1978. 
 - 349 p. :  ill. ;  19 cm. 
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>ISBN: </label>0412215004 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrology.<br/>Rocks.