Geological Survey of Alabama, Alabama. State Oil and Gas Board, & Mink, R. M. (1990). Norphlet and pre-Norphlet geologic framework of Alabama and panhandle Florida coastal waters area and adjacent federal waters area. Geological Survey of Alabama, Energy and Coastal Geology Division.
Cita Chicago (17th ed.)Geological Survey of Alabama, Alabama. State Oil and Gas Board, i Robert M. Mink. Norphlet and Pre-Norphlet Geologic Framework of Alabama and Panhandle Florida Coastal Waters Area and Adjacent Federal Waters Area. Tuscaloosa, Ala.: Geological Survey of Alabama, Energy and Coastal Geology Division, 1990.
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