TY  - RPRT
TI  - Depositional environments of the Pennsylvanian Pottsville Formation in the Black Warrior basin of Alabama
AU  - C.A. Horsey
PY  - 1981
DO  - 10.1306/212f7db5-2b24-11d7-8648000102c1865d
UR  - https://pubs.usgs.gov/publication/70011869
ID  - 70011869
ER  -