Martin, H. M. (1958). Outline of the geologic history of Midland County. [Michigan Dept. of Conservation, Geological Survey Division].
Chicago Style (17th ed.) CitationMartin, Helen M. Outline of the Geologic History of Midland County. [Lansing]: [Michigan Dept. of Conservation, Geological Survey Division], 1958.
MLA (9th ed.) CitationMartin, Helen M. Outline of the Geologic History of Midland County. [Michigan Dept. of Conservation, Geological Survey Division], 1958.
Warning: These citations may not always be 100% accurate.