APA (7th ed.) Citation

Curth, E. A. (1978). Safety aspects of longwall mining in the Illinois coal basin. Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Curth, Ernest A. Safety Aspects of Longwall Mining in the Illinois Coal Basin. [Washington]: Dept. of the Interior, Bureau of Mines, 1978.

MLA (9th ed.) Citation

Curth, Ernest A. Safety Aspects of Longwall Mining in the Illinois Coal Basin. Dept. of the Interior, Bureau of Mines, 1978.