TY  - RPRT
TI  - Upper Cretaceous bituminous coal deposits of the Olmos Formation, Maverick County, Texas
AU  - Robert W. Hook
AU  - Peter D. Warwick
AU  - John R. SanFilipo
PY  - 2011
UR  - https://pubs.usgs.gov/publication/70192705
ID  - 70192705
ER  -