Columbia subject headings:
Harvard subject headings:
Natural gas reserves--Russia (Federation)--Russian Far East.
Natural gas--Geology--Russia (Federation)--Russian Far East.
Petroleum reserves--Russia (Federation)--Russian Far East.
Petroleum--Geology--Russia (Federation)--Russian Far East.
Princeton subject headings:
Natural gas--Russia (Federation)--Russian Far East.
Petroleum--Russia (Federation)--Russian Far East.