Hänvisningar gällande denna post
APA-referensUnited Nations. (1969). The coal situation in Europe in 1968 and its prospects. United Nations.
Chicago-stil citatUnited Nations. The Coal Situation in Europe in 1968 and Its Prospects. New York: United Nations, 1969.
MLA-referensUnited Nations. The Coal Situation in Europe in 1968 and Its Prospects. United Nations, 1969.
Harvard-stil citatUnited Nations. 1969. The coal situation in Europe in 1968 and its prospects. New York: United Nations.
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