Grabau, Amadeus W.  1870-1946. <br/><br/>
Principles of stratigraphy / 
by Amadeus W. Grabau. 
 - New York :  Dover Pub. Inc.,  1960. 
 - v. :  ill. ;  21 cm. 
<br/><br/> 'Unabridged and unaltered republication of the last revised edition published in 1924.' 
<br/><br/><label>LCCN: </label>60-51860 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Stratigraphic.