Kummel, Bernhard,  1919- <br/><br/>
History of the earth :  an introduction to historical geology / 
Kummel Bernhard 
 - 2nd ed. 
 - San Francisco :  W.H. Freeman,  1970 
 - xix, 707 p. :  ill., maps ;  26 cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0716702495 
<br/><br/><label>LCCN: </label>73-114579 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Historical geology