Freeman, V. L., Klepper, M. R., & Ruppel, E. T. (1958). Geology of part of the Townsend Valley, Broadwater and Jefferson Counties, Montana. [United States Department of the Interior, Geological Survey].
Chicago Style (17th ed.) CitationFreeman, Val L., Montis Ruhl Klepper, and Edward Thompson Ruppel. Geology of Part of the Townsend Valley, Broadwater and Jefferson Counties, Montana. [Washington, D.C.]: [United States Department of the Interior, Geological Survey], 1958.
MLA (9th ed.) CitationFreeman, Val L., et al. Geology of Part of the Townsend Valley, Broadwater and Jefferson Counties, Montana. [United States Department of the Interior, Geological Survey], 1958.
Warning: These citations may not always be 100% accurate.