Historical industrial waste disposal practices in Winnebago County, Illinois : 1870-1980 /

"HWRIC RR 011" -- cover.

Home energy costs and assistance in Illinois : 2001 annual report.

"Home Energy Costs and Assistance in Illinois, 2001 Annual Report, is a product of the Low Income Energy Assessment Project, an ongoing process within the Department of Natural Resources' Office of Realty and Environmental Planning, Division of Energy and Environmental Assessment. Annual reports on the costs of home energy and the effect of low-income residential energy assistance programs have been published under this initiative since the passage of the Energy Assistance Act of 1989."--P. [3].

How to run a community recycling center : a resource guide to low-technology recycling in Illinois /

Location of title page varies with copies.

Hunting efficiency and crippling losses of waterfowl on public areas in Illinois : 1978 versus pre-steel shot years /

Caption title.

Hydraulic investigation for the construction of artificial islands in Peoria Lake : final report /

Prepared for Illinois Dept. of Energy and Natural Resources, Energy and Environmental Affairs Division.

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 coal mining costs /

"ILENR/RE-PR-92/01."

Illinois Coal Bond Fund.

"September, 1985."

Illinois big tree program.

Cover title.

Illinois energy data review /

Title from caption.

Illinois groundwater protection act.

"Effective September 24, 1987."

Illinois energy efficient homes for the 80's.

On cover: Illinois solar 80/81/82.

Illinois groundwater law : the rule of "reasonable use" /

"September 18, 1985."

Illinois land report : Rice Lake Conservation Area.

"August 29, 1983."

Illinois recycled materials market directory.

Description based on: December 1987.