Geology :  the science of a changing earth / 
by Ira S. Allison ... [et al.] 
 - 6th ed. 
 - New York :  McGraw-Hill,  1974 
 - viii, 498 p. :  ill. ;  24 cm. 
<br/><br/> First ed. by W. H. Emmons published in 1932 under title : Geology 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0070011184  0070011192 :  15.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geology
<br/><br/><label>Dewey Class. No.: </label>550