Hamilton County surface water resources /

"April, 1969."

Henry County surface water resources /

"April, 1969."

Historic Illinois.

Mode of access: Internet.

Historic preservation fund grants-in-aid program local participation manual.

Loose-leaf for updating.

Illinois 1995 endangered & threatened plant species /

Mode of access: Internet.

Hunter harvest survey.

Title from cover.

Illinois Beach State Park master management plan.

Bibliography: p. 79-80.

Illinois big tree program.

Cover title.

Illinois furbearer trapping survey.

Cover title.

Illinois preservation series /

Title from caption.

Illinois outdoor recreation.

Cover title.

Illinois plants for habitat restoration : commercial availability, characteristics and fish & wildlife utilization.

Cover title.

Illinois recreational boating access guide.

Cover title.

Illinois prairie : past and future : a restoration guide /

"September 1986."

Illinois sport fishing survey.

"A mail survey of anglers who sport fished in Illinois between ... and ..."