The Embarras River basin : an inventory of the region's resources /

"A product of the Critical Trends Assessment Program (CTAP) and the Ecosystems Program of the Illinois Department of Natural Resources (IDNR)."

The Heart of the Sangamon : an inventory of the region's resources.

"A project of the Critical Trends Assessment Program."

The Kaskaskia River Basin : an inventory of the region's resources.

"January 2001"

The Pests and Weather Project /

"March 1987."

The Influences of land uses and stream modifications on water quality in the streams of the Court Creek Watershed /

"Contract WR 22."

The lower Rock River basin : an inventory of the region's resources /

"A project of the Critical Trends Assessment Program."

Thorn Creek : an inventory of the region's resources.

"A project of the Critical Trends Assessment Program."

The upper Des Plaines River basin : an inventory of the region's resources /

"A project of the Critical Trends Assessment Program (CTAP and the Ecosystems Program of the Illinois Department of Natural Resources (IDNR)"--P. [2] of cover.

The Sugar-Pecatonica Rivers basin : an inventory of the region's resources /

"A project of the Critical Trends Assessment Program."

The Sinkhole Plain : an inventory of the region's resources /

"A project of the Critical Trends Assessment Program."

The Vermilion River basin : an inventory of the region's resources.

"A project of the Critical Trends Assessment Program."

Understanding air conditioning systems for better energy efficiency : operations and maintenance procedures for utility cost control /

"ILENR/BE-87/01."

Use and disposal of wastewater sludge in Illinois : final report /

"Contract: EA99"

Natural resources.

Some of the volumes were issued by the office under its earlier name: Division of Information.

Secondary impacts of public investment in natural resources; proceedings of a symposium, September 25-27, 1968.

Sponsored by Natural Resource Economics Division, Economic Research Service, U.S. Dept. of Agriculture.