Não informado. (2018). Report of the Department of Mines and Resources. Department of Mines and Resources.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Report of the Department of Mines and Resources. Ottawa: Department of Mines and Resources, 2018.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Report of the Department of Mines and Resources. Department of Mines and Resources, 2018.
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