Geology :   principles and processes / 
William H. Emmons ...[et al.]. 
 - New York :  McGraw-Hill,   c 1955. 
 - vi, 638 p. :  ill. ;   23 cm. 
<br/><br/> Includes index. 
<br/><br/>343  343 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geology.
<br/><br/><label>Dewey Class. No.: </label>550 / E67g