Tyrrell, George Walter. <br/><br/>
The principles of petrology an introduction to the science of rocks 

 - 2 ed. 
 - London :  Methuen,  (1929) 
 - 349 p.  : ilus. 
<br/><br/><label>LCCN: </label>58853 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrología.
<br/><br/><label>Dewey Class. No.: </label>552  / T9 1929