United Nations. Economic Commission for Europe & Symposium on Developments and Trends in Underground Storage of Natural Gas and LPG. (1990). Underground storage of natural gas and LPG. United Nations.
Chicago Style (17th ed.) CitationUnited Nations. Economic Commission for Europe and Symposium on Developments and Trends in Underground Storage of Natural Gas and LPG. Underground Storage of Natural Gas and LPG. New York: United Nations, 1990.
MLA (9th ed.) CitationUnited Nations. Economic Commission for Europe and Symposium on Developments and Trends in Underground Storage of Natural Gas and LPG. Underground Storage of Natural Gas and LPG. United Nations, 1990.
Warning: These citations may not always be 100% accurate.