APA (7th ed.) Citation

Rice, G. S., & Hartmann, I. (1939). Coal mining in Europe. A study of practices in different coal formations and under various economic and regulatory conditions compared with those in the United States. U.S. Govt. print. off.

Chicago Style (17th ed.) Citation

Rice, George Samuel, and Irving Hartmann. Coal Mining in Europe. A Study of Practices in Different Coal Formations and Under Various Economic and Regulatory Conditions Compared with Those in the United States. Washington: U.S. Govt. print. off, 1939.

MLA (9th ed.) Citation

Rice, George Samuel, and Irving Hartmann. Coal Mining in Europe. A Study of Practices in Different Coal Formations and Under Various Economic and Regulatory Conditions Compared with Those in the United States. U.S. Govt. print. off, 1939.