Não informado. (1956). Geographical Paper. Department of Mines and Technical Surveys, Geographical Branch.
Čikaški stil citiranja (17. izdanje)Não informado. Geographical Paper. Ottawa: Department of Mines and Technical Surveys, Geographical Branch, 1956.
MLA način citiranja (8. izdanje)Não informado. Geographical Paper. Department of Mines and Technical Surveys, Geographical Branch, 1956.
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