TY  - RPRT
TI  - Water Resources Data, Illinois, Water Year 1991, Vol. 2
AU  - T.E. Richards
AU  - P.D. Hayes
AU  - D. J. Sullivan
PY  - 1992
DO  - 10.3133/wdril912
UR  - https://pubs.usgs.gov/publication/wdrIL912
ID  - wdrIL912
ER  -