APA (7th ed.) Citation

Winston, R. B., & Phillips, T. L. (1991). A structurally preserved, Lower Pennsylvanian flora from the New Castle Coal Bed of Alabama. Geological Survey of Alabama.

Chicago Style (17th ed.) Citation

Winston, Richard B., and Tom Lee Phillips. A Structurally Preserved, Lower Pennsylvanian Flora from the New Castle Coal Bed of Alabama. Tuscaloosa, Ala.: Geological Survey of Alabama, 1991.

MLA (9th ed.) Citation

Winston, Richard B., and Tom Lee Phillips. A Structurally Preserved, Lower Pennsylvanian Flora from the New Castle Coal Bed of Alabama. Geological Survey of Alabama, 1991.