Elgin, R. A., Volin, M. E., & Townsend, J. W. (1949). The Leadville drainage tunnel, Lake County, Colo. U.S. Department of the Interior, Bureau of Mines.
Chicago Style (17th ed.) CitationElgin, Robert A., M. E. Volin, and James W. Townsend. The Leadville Drainage Tunnel, Lake County, Colo. [Washington, D.C.]: U.S. Department of the Interior, Bureau of Mines, 1949.
MLA (9th ed.) CitationElgin, Robert A., et al. The Leadville Drainage Tunnel, Lake County, Colo. U.S. Department of the Interior, Bureau of Mines, 1949.
Warning: These citations may not always be 100% accurate.