Columbia subject headings:
Gas fields--Maps.
Gas industry--Maps.
Liquefied natural gas industry--Maps.
Liquefied natural gas shipping terminals--Maps.
Liquefied natural gas--Maps.
Maps.
Natural gas in submerged lands--Maps.
Natural gas pipelines--Maps.
Natural gas--Maps.
Natural gas--Storage--Maps.
Thematic maps.
World maps.
Harvard subject headings:
Gas fields--Maps.
Gas industry--Maps.
Liquefied natural gas industry--Maps.
Liquefied natural gas shipping terminals--Maps.
Natural gas pipelines--Maps.
Natural gas--Maps.
Natural gas--Storage--Maps.
Oil fields--Maps.
Petroleum industry and trade--Maps.
Petroleum pipelines--Maps.
Petroleum refineries--Maps.
Petroleum shipping terminals--Maps.
Petroleum--Maps
Thematic maps.
World maps.
Princeton subject headings:
Gas fields--Maps.
Gas industry--Maps.
Liquefied natural gas industry--Maps.
Liquefied natural gas shipping terminals--Maps.
Liquefied natural gas--Maps.
Maps.
Natural gas in submerged lands--Maps.
Natural gas pipelines--Maps.
Natural gas--Maps.
Natural gas--Storage--Maps.
Thematic maps.
World maps.