APA (7th ed.) Citation

Illinois State Geological Survey. Industrial minerals notes. Illinois State Geological Survey.

Chicago Style (17th ed.) Citation

Illinois State Geological Survey. Industrial Minerals Notes. Urbana, Ill.: Illinois State Geological Survey.

MLA (9th ed.) Citation

Illinois State Geological Survey. Industrial Minerals Notes. Illinois State Geological Survey.

Warning: These citations may not always be 100% accurate.