TY  - RPRT
TI  - Coal investigation in the Saline-Gallatin field, Illinois, and the adjoining area. The Arkansas coal field
AU  - F.W. DeWolf
AU  - A. J. Collier
PY  - 1907
DO  - 10.3133/b316b
UR  - https://pubs.usgs.gov/publication/b316B
ID  - b316B
ER  -