Petroleum industry in Illinois, 1978.
APA Citation
Van den Berg, J., Illinois State Geological Survey. (1980). Petroleum industry in Illinois, 1978. Urbana, Ill.: Illinois State Geological Survey.
MLA Citation
Van den Berg, Jacob, and Illinois State Geological Survey. Petroleum Industry In Illinois, 1978. Urbana, Ill.: Illinois State Geological Survey, 1980.
Warning: These citations may not always be complete (especially for serials).