Jones, W. B., & Harper, R. M. (1935). History and work of geological surveys and industrial development in Alabama. Geological Survey of Alabama.
Style de citation Chicago (17e éd.)Jones, Walter B., et Roland M. Harper. History and Work of Geological Surveys and Industrial Development in Alabama. University, Ala.: Geological Survey of Alabama, 1935.
Style de citation MLA (8e éd.)Jones, Walter B., et Roland M. Harper. History and Work of Geological Surveys and Industrial Development in Alabama. Geological Survey of Alabama, 1935.
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