Effingham County surface water resources /

"February, 1969."

Fayette County surface water resources /

"January, 1968."

Hamilton County surface water resources /

"April, 1969."

Henry County surface water resources /

"April, 1969."

Hydrogeologic evaluation of sand and gravel aquifers for municipal groundwater supplies in East-Central Illinois /

"Prepared in cooperation with the Illinois Department of Transportation. Division of Water Resources."

Illinois State Geological Survey : [annual report].

Description based on: 1987-88; title from cover.

Inventory of Illinois surface water resources /

Title from cover.

Jo Daviess County surface water resources /

"June, 1971."

Kane County surface water resources /

"April 1968."

Kankakee County surface water resources /

"March, 1968."

Livingston County surface water resources /

"March, 1969."

McHenry County surface water resources /

Bibliography: p. 69-71.

Madison County surface water resources /

"January, 1970."

Magnitude and frequency of floods in Illinois,

Bibliography: p. 594.

Menard County surface water resources /

"February, 1969."