Water quality in the upper Illinois River Basin, Illinois, Indiana, and Wisconsin, 1999-2001 
George E. Groschen ... [et al.]. 
 - Reston, Va  Denver, CO  U.S. Department of the Interior, U.S. Geological Survey  For sale by U.S. Geological Survey, Information Services  2004. 
 - vi, 32 p.  col. ill., col. maps  28 cm. 
 - Circular  1230 .
 - U.S. Geological Survey circular  1230. .
<br/><br/> Shipping list no.: 2004-0174-P. 
<br/><br/>Includes bibliographical references (p. 23-24). 
<br/><br/>
<br/><br/><label>ISBN: </label>0607940662 
<br/><br/><label>LCCN: </label>2003063148 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water quality--Illinois--Illinois River Watershed.
<br/><br/><label>LC Class. No.: </label>TD224.I3  / W373 2003 
<br/><br/><label>Dewey Class. No.: </label>363.739/42/0977 
<br/><br/><label>GPO Item No.: </label>0620-A 0620-A (online) 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.4/2:1230