Dunbar, Carl O.  1891- <br/><br/>
Principles of stratigraphy / 
Carl O. Dunbar, John Rodgers. 
 - Wiley Int. ed. 
 - New York :  Wiley,  1957. 
 - xi, 356 p. :  ill. ;  27 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0471225398 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Stratigraphic.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>North America
<br/><br/><label>Dewey Class. No.: </label>551.7  / DUP 1957