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Geologic notes.

APA Citation

Illinois State Geological Survey. (1983). Geologic notes. Champaign, IL (615 E. Peabody Dr., Champaign 61820): Illinois State Geological Survey.

Illinois State Geological Survey. Geologic Notes. Champaign, IL (615 E. Peabody Dr., Champaign 61820): Illinois State Geological Survey, 1983.

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