Marshall, R. B. (1911). Results of spirit leveling in Michigan and Wisconsin, 1897 to 1909, inclusive. Department of the Interior, United States Geological Survey.
Chicago Style (17th ed.) CitationMarshall, R. B. Results of Spirit Leveling in Michigan and Wisconsin, 1897 to 1909, Inclusive. Washington, D.C.: Department of the Interior, United States Geological Survey, 1911.
MLA (9th ed.) CitationMarshall, R. B. Results of Spirit Leveling in Michigan and Wisconsin, 1897 to 1909, Inclusive. Department of the Interior, United States Geological Survey, 1911.
Warning: These citations may not always be 100% accurate.