APA (7th ed.) Citation

Chugh, Y. P., Atri, A., & Dougherty, J. (1990). Laboratory and field characterization of immediate floor strata in Illinois basin coal mines. Illinois Mine Subsidence Research Program, Illinois State Geological Survey.

Chicago Style (17th ed.) Citation

Chugh, Yoginder P., Anil Atri, and James Dougherty. Laboratory and Field Characterization of Immediate Floor Strata in Illinois Basin Coal Mines. Champaign, Ill.: Illinois Mine Subsidence Research Program, Illinois State Geological Survey, 1990.

MLA (9th ed.) Citation

Chugh, Yoginder P., et al. Laboratory and Field Characterization of Immediate Floor Strata in Illinois Basin Coal Mines. Illinois Mine Subsidence Research Program, Illinois State Geological Survey, 1990.