TY  - RPRT
TI  - Estimates of Federal ownership of undiscovered oil and gas resources by province; statistical background data for U.S. Geological Survey Circular 860
AU  - K. L. Varnes
AU  - G.L. Dolton
PY  - 1982
DO  - 10.3133/ofr82666b
UR  - https://pubs.usgs.gov/publication/ofr82666B
ID  - ofr82666B
ER  -