Twenhofel, William H.  1875-1957. <br/><br/>
The geology and invertebrate paleontology of the Comanchean and "Dakota" formations of Kansas, 
by W.H. Twenhofel. 
 - Topeka,  Kansas state printing plant,  1924. 
 - 135 p.  XXIII pl. (part. fold., incl. maps)  23 cm. 
 - Kansas. State Geological Survey. Bulletin  9 .
 - Bulletin (Kansas Geological Survey) ;  9. .
<br/><br/>Bibliography: p. 90-94. 
<br/><br/><label>LCCN: </label>gs 24000276  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Kansas.<br/>Paleontology--Kansas.
<br/><br/><label>LC Class. No.: </label>QE113  / .A2 no. 9 
<br/><br/><label>Dewey Class. No.: </label>557.81 s