Wallace, J. J., Price, G. C., & Ackerman, M. J. (1961). Hydraulic coal mining research: Equipment and preliminary tests. U.S. Dept. of the Interior, Bureau of Mines.
Chicago Style (17th ed.) CitationWallace, Joseph J., George Cletus Price, and M. J. Ackerman. Hydraulic Coal Mining Research: Equipment and Preliminary Tests. Washington, DC: U.S. Dept. of the Interior, Bureau of Mines, 1961.
MLA (8th ed.) CitationWallace, Joseph J., et al. Hydraulic Coal Mining Research: Equipment and Preliminary Tests. U.S. Dept. of the Interior, Bureau of Mines, 1961.
Warning: These citations may not always be 100% accurate.