Illinois coal fact sheet.
APA Citation
Illinois. Dept. of Energy and Natural Resources. (1992). Illinois coal fact sheet. [Springfield, Ill.]: Illinois Dept. of Energy and Natural Resources.
MLA Citation
Illinois. Dept. of Energy and Natural Resources. Illinois Coal Fact Sheet. [Springfield, Ill.]: Illinois Dept. of Energy and Natural Resources, 1992.
Warning: These citations may not always be complete (especially for serials).