Geology :   principles and processes. / 
William H. Emmons... [et. al.] 
 - 4th ed. 
 - New York :  McGraw-Hill,  1955. 
 - 638 p. :  ill. ;  22 cm. 
<br/><br/>Includes bibliography and Indexes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology.
<br/><br/><label>Dewey Class. No.: </label>551  / GEO 1955