United Nations. Economic Commission for Europe. (1961). Markets for natural gas in Europe in 1961. United Nations.
Chicago Style (17th ed.) CitationUnited Nations. Economic Commission for Europe. Markets for Natural Gas in Europe in 1961. Geneva: United Nations, 1961.
MLA (8th ed.) CitationUnited Nations. Economic Commission for Europe. Markets for Natural Gas in Europe in 1961. United Nations, 1961.
Warning: These citations may not always be 100% accurate.