TY  - BOOK
AU  - Groschen,George E.
ED  - United States.
ED  - United States
TI  - Water quality in the upper Illinois River Basin, Illinois, Indiana, and Wisconsin, 1999-2001
SN  - 0607940662
U1  - 363.739420977 22nd ed.
PY  - 2004///].
CY  - [Reston, Virginia]: 
PB  - U. S. Geological Survey, , U. S. Department of the Interior
KW  - Water quality
KW  - Illinois River Watershed
N1  - Includes bibliographical references (p. 23-24)
ER  -