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Petroleum industry in Illinois, 1961.

APA Citation

Illinois State Geological Survey. (1962). Petroleum industry in Illinois, 1961. Urbana, Ill.: Illinois State Geological Survey.

Illinois State Geological Survey. Petroleum Industry In Illinois, 1961. Urbana, Ill.: Illinois State Geological Survey, 1962.

Warning: These citations may not always be complete (especially for serials).