Illinois energy conservation plan report :
1980 revision /
Institute of Natural Resources.
APA Citation
Illinois Institute of Natural Resources. (1980). Illinois energy conservation plan report: 1980 revision. Springfield, Ill. : The Institute.
MLA Citation
Illinois Institute of Natural Resources. Illinois Energy Conservation Plan Report: 1980 Revision. Springfield, Ill. : The Institute, 1980.
Warning: These citations may not always be complete (especially for serials).