TY  - RPRT
TI  - Federal coal resource occurrence and federal coal development maps of the Krebs 7.5 minute quadrangle, Pittsburg County, Oklahoma
AU  - Geological Services of Tulsa
AU  - B. T. Brady
AU  - J. L. Querry
PY  - 1980
DO  - 10.3133/ofr79301
UR  - https://pubs.usgs.gov/publication/ofr79301
ID  - ofr79301
ER  -