Schuchert, Charles <br/><br/>
A textbook of geology.  Part II. Historical geology 
by Charles Schuchert and Carl O. Dunbar. 
 - 4th ed. 
 - New York  J. Wiley & sons, inc.  1941. 
 - 291 p.  illus. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology