Harker, Alfred. <br/><br/>
Petrology for students, an introduction to the study of roks under the microscope 

 - 7 ed. 
 - Cambridge :  University Press,  1935 
 - 300 p.  : ilus. 
<br/><br/> Ejs. desc. en bodega 
<br/><br/><label>LCCN: </label>73686 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrología.
<br/><br/><label>Dewey Class. No.: </label>552.8  / H37 1935