Siebert, H. (1992). Transfrontier pollution and global environmental media. Institut für Weltwirtschaft.
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Citação norma Chicago
Siebert, Horst. Transfrontier Pollution and Global Environmental Media. Kiel: Institut für Weltwirtschaft, 1992.
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Citação norma MLA
Siebert, Horst. Transfrontier Pollution and Global Environmental Media. Institut für Weltwirtschaft, 1992.
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Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.