Geological Survey of Alabama. (1886). Bulletin. Geological Survey of Alabama.
Cita Chicago Style (17a ed.)Geological Survey of Alabama. Bulletin. University, Ala.,[etc.]: Geological Survey of Alabama, 1886.
Cita MLA (8a ed.)Geological Survey of Alabama. Bulletin. Geological Survey of Alabama, 1886.
Precaución: Estas citas no son 100% exactas.