http://pec.lib.wvu.edu/record/P154192004Assessment of undiscovered Carboniferous coal-bed gas resources of the Appalachian Basin and the Black Warrior Basin Provinces, 2002.<p> Serial issue. Issued as: Fact sheet (Geological Survey (U.S.)), 2004-3092 (2004:Sept.). At head of title: National Assessment of Oil and Gas.</p>Milici, Robert C., 1931-Hatch, Joseph R.Natural gas--Prospecting--Black Warrior Basin (Ala. and Miss.)Natural gas--Prospecting--Appalachian Region, Southern.Geology, Stratigraphic--Carboniferous.Coalbed methane--Appalachian Region, Southern.Coalbed methane--Black Warrior Basin (Ala. and Miss.)14256