Illinois lands unsuitable for mining :
a guidebook on getting involved in the petition process, Illinois' Geographic Information System.
APA Citation
Illinois. Dept. of Energy and Natural Resources. (1985). Illinois lands unsuitable for mining: a guidebook on getting involved in the petition process, Illinois' Geographic Information System. [Springfield, Ill.]: Illinois Dept. of Energy and Natural Resources.
MLA Citation
Illinois. Dept. of Energy and Natural Resources. Illinois Lands Unsuitable for Mining: a Guidebook On Getting Involved In the Petition Process, Illinois' Geographic Information System. [Springfield, Ill.]: Illinois Dept. of Energy and Natural Resources, 1985.
Warning: These citations may not always be complete (especially for serials).