Illinois energy programs summary : 1981.
APA Citation
Illinois Institute of Natural Resources. (1981). Illinois energy programs summary : 1981. [Springfield, Ill.]: Illinois Institute of Natural Resources.
MLA Citation
Illinois Institute of Natural Resources. Illinois Energy Programs Summary : 1981. [Springfield, Ill.]: Illinois Institute of Natural Resources, 1981.
Warning: These citations may not always be complete (especially for serials).