TY  - RPRT
TI  - National assessment of undiscovered conventional oil and gas resources, USGS-MMS working paper
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
AU  - Minerals Management Service
PY  - 1989
DO  - 10.3133/ofr88373
UR  - https://pubs.usgs.gov/publication/ofr88373
ID  - ofr88373
ER  -