APA (7th ed.) Citation

Kauffman, P. W., Hawkins, S. A., & Thompson, R. R. (1981). Room and pillar retreat mining: A manual for the coal industry. U.S. Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Kauffman, Peter W., Steven A. Hawkins, and Robert R. Thompson. Room and Pillar Retreat Mining: A Manual for the Coal Industry. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1981.

MLA (9th ed.) Citation

Kauffman, Peter W., et al. Room and Pillar Retreat Mining: A Manual for the Coal Industry. U.S. Dept. of the Interior, Bureau of Mines, 1981.