(1980). <La> Situation du charbon dans la région de la CEE en 1978 et ses perspectives. Nations Unies.
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Citação norma Chicago
<La> Situation Du Charbon Dans La Région De La CEE En 1978 Et Ses Perspectives. New York: Nations Unies, 1980.
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Citação norma MLA
<La> Situation Du Charbon Dans La Région De La CEE En 1978 Et Ses Perspectives. Nations Unies, 1980.
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Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.