TY  - RPRT
TI  - Colorado areas of oil and gas production
AU  - Richard F. Mast
AU  - D. H. Root
AU  - L. P. Williams
AU  - W. R. Beeman
PY  - 1994
DO  - 10.3133/ofr9422a
UR  - https://pubs.usgs.gov/publication/ofr9422A
ID  - ofr9422A
ER  -