Clay County surface water resources /

Bibliography: p. 34-35.

DeWitt County surface water resources /

"April, 1969."

Economic impact of a suspension of Rule 203 as it applies to an unnamed tributary of the Vermilion River, Vermilion County, Illinois /

"Project no. 80.159."

Economic assessment of resources recovery and utilization from coal fine wastes /

"Project no. 80.183."

Edwards County surface water resources /

"March, 1969."

Effingham County surface water resources /

"February, 1969."

Environmental impact and health effects of wastewater chlorination /

Project no.: 80.125.

Evaluation of existing data on discharges from active coal mines in Illinois /

"Project no. 60.040."

Fayette County surface water resources /

"January, 1968."

Hamilton County surface water resources /

"April, 1969."

Henry County surface water resources /

"April, 1969."

Illinois water resources : an overview /

Cover title.

Implications of expanding coal production for Illinois' transportation systems /

"March, 1981."

Jo Daviess County surface water resources /

"June, 1971."

Inventory of public surface [water] supply : system deficiencies.

Bibliography: leaf 5.