Harker, Alfred  1859-1939 <br/><br/>
The natural history of igneous rocks / 
by Alfred Harker 
 - New York :  Hafner Publishing Company,  1965 
 - xv, 384 p. :  ill. ;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>LCCN: </label>gs 09-000256 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rocks, Igneous<br/>Petrology