APA (7th ed.) Citation

Mitchell, D. R. (1943). Coal preparation. American Institute of Mining and Metallurgical Engineers.

Chicago Style (17th ed.) Citation

Mitchell, David Ray. Coal Preparation. New York: American Institute of Mining and Metallurgical Engineers, 1943.

MLA (9th ed.) Citation

Mitchell, David Ray. Coal Preparation. American Institute of Mining and Metallurgical Engineers, 1943.