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."

McHenry County surface water resources /

Bibliography: p. 69-71.

Main report, environmental, economic, and social assessment of the Statewide Water Quality Management Plan : 208 Water Quality Management Planning Program /

"Prepared for the Illinois Institute of Natural Resources and the Illinois Environmental Protection Agency"--Cover

Madison County surface water resources /

"January, 1970."

Manual of horizontal and vertical control monuments : MNC Midlothian - Natalie Creeks, Cook County, Illinois.

Provides location of monuments installed by the Office of Water Resources which indicate land elevation along Midlothian and Natalie Creeks.

List of public health statutes and Illinois Department of Public Health rules.

Caption title: Rules of the Illinois Department of Public Health.

Marketing perspectives : a publication of the Illinois Department of Agriculture, Division of Marketing.

Title from caption.

Menard County surface water resources /

"February, 1969."