Marshall, R. B., & Lewis, J. H. (1914). Results of spirit leveling in Oregon, 1896 to 1913, inclusive. Department of the Interior, United States Geological Survey.
Chicago Style (17th ed.) CitationMarshall, R. B., and John H. Lewis. Results of Spirit Leveling in Oregon, 1896 to 1913, Inclusive. [Washington, D.C.]: Department of the Interior, United States Geological Survey, 1914.
MLA (9th ed.) CitationMarshall, R. B., and John H. Lewis. Results of Spirit Leveling in Oregon, 1896 to 1913, Inclusive. Department of the Interior, United States Geological Survey, 1914.
Warning: These citations may not always be 100% accurate.