Barrows, Harlan H.  1877- <br/><br/>
Geography of the middle Illinois valley, 
by Harlan H. Barrows. 
 - Urbana,  University of Illinois,  1910. 
 - xii, 128 p.  illus., 16 (i. e. 17) pl. (incl. map) diagrs.  24 cm. 
 - Illinois. State geological survey.  Bulletin  no. 15 .
 - Bulletin (Illinois State Geological Survey) ;  no. 15. .
<br/><br/><label>LCCN: </label>gs 10000411  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geography--Illinois.
<br/><br/><label>LC Class. No.: </label>QE105  / .A16 no. 15