Columbia subject headings:
Gas fields--Russia (Federation)--Maps--Databases.
Geographic information systems--Russia (Federation)
Maps.
Mines and mineral resources--Russia (Federation)--Maps--Databases.
Natural resources--Russia (Federation)--Maps--Databases.
Oil fields--Russia (Federation)--Maps--Databases.
Harvard subject headings:
Gas fields--Russia (Federation)--Maps--Databases.
Geographic Information systems--Russia (Federation).
Mines and mineral resources--Russia (Federation)--Maps--Databases.
Natural resources--Russia (Federation)--Maps--Databases.
Oil fields--Russia (Federation)--Maps--Databases.
Princeton subject headings:
Databases.
Gas fields--Russia (Federation)--Maps--Databases.
Geographic information systems--Russia (Federation).
Maps.
Mines and mineral resources--Russia (Federation)--Maps--Databases.
Natural resources--Russia (Federation)--Maps--Databases.
Oil fields--Russia (Federation)--Maps--Databases.