TY  - RPRT
TI  - Maps showing geology, oil and gas fields and geologic provinces of the former Soviet Union
AU  - F.M. Persits
AU  - G. F. Ulmishek
AU  - D.W. Steinshouer
PY  - 1999
DO  - 10.3133/ofr97470e
UR  - https://pubs.usgs.gov/publication/ofr97470E
ID  - ofr97470E
ER  -