TY  - RPRT
TI  - USGS world petroleum assessment 2000 : new estimates of undiscovered oil and natural gas, natural gas liquids, including reserve growth, outside the United States
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 2003
DO  - 10.3133/fs06203
UR  - https://pubs.usgs.gov/publication/fs06203
ID  - fs06203
ER  -