APA (7th ed.) Citation

Cox, G. H. (1914). Lead and zinc deposits of Northwestern Illinois. State Geological Survey, University of Illinois.

Chicago Style (17th ed.) Citation

Cox, Guy Henry. Lead and Zinc Deposits of Northwestern Illinois. Urbana: State Geological Survey, University of Illinois, 1914.

MLA (9th ed.) Citation

Cox, Guy Henry. Lead and Zinc Deposits of Northwestern Illinois. State Geological Survey, University of Illinois, 1914.

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