APA (7th ed.) Citation

Illinois State Geological Survey, Illinois Mine Subsidence Research Program, & Darmody, R. G. (1990). Agricultural impacts of coal mine subsidence: Effects on corn yields. Illinois Mine Subsidence Research Program, Illinois State Geological Survey.

Chicago Style (17th ed.) Citation

Illinois State Geological Survey, Illinois Mine Subsidence Research Program, and Robert G. Darmody. Agricultural Impacts of Coal Mine Subsidence: Effects on Corn Yields. Champaign, Ill.: Illinois Mine Subsidence Research Program, Illinois State Geological Survey, 1990.

MLA (9th ed.) Citation

Illinois State Geological Survey, et al. Agricultural Impacts of Coal Mine Subsidence: Effects on Corn Yields. Illinois Mine Subsidence Research Program, Illinois State Geological Survey, 1990.