Lake water quality assessment program, 1993 : northeastern Illinois lakes /

"January 1995."

Kane County surface water resources /

"April 1968."

Kankakee County surface water resources /

"March, 1968."

Land and water report /

Report year ends June 30.

Limnology of Cedar Lake, Lake County, Illinois : May-October, 1979.

Cover title.

Limnology of Johnson Sauk Trail Lake, Henry County, Illinois : June-October, 1979.

Cover title.

Limnology of Lincoln Trail Lake, Clark County, Illinois : May-October, 1979.

Cover title.

Limnology of Long Lake, Lake County, Illinois : May-October, 1979.

Cover title.

Limnology of Otter Lake, Macoupin County, Illinois : May-October, 1979.

Cover title.

Limnology of Lake Shabbona, De Kalb County, Illinois : May-October, 1979.

Cover title.

Limnology of Lake Taylorville, Christian County, Illinois : May-October, 1979.

Cover title.

Limnology of Pittsfield City Lake, Pike County, Illinois : May-October, 1979.

Cover title.

Limnology of Round Lake, Lake County, Illinois : May-October, 1979.

On cover: Investigation of Illinois surface waters.

Livingston County surface water resources /

"March, 1969."

Lower Sangamon River Valley : an inventory of the region's resources /

"March 2003."