Water quality in the upper Illinois River Basin, Illinois, Indiana, and Wisconsin, 1999-2001 / 
George E. Groschen...[et al.]. 
 - [Reston, Virginia]:   U. S. Geological Survey,   U. S. Department of the Interior  [2004].  
 - vi, 32 p. :  ill., maps, tables ;  28 cm. 
 -  1230 .
<br/><br/>Includes bibliographical references (p. 23-24). 
<br/><br/><label>ISBN: </label>0607940662 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water quality--Illinois River Watershed
<br/><br/><label>Dewey Class. No.: </label>363.739420977