Não informado. (2018). Report of Progress. Geological and Natural History Survey of Canada.
Lua i Stíl Chicago (17ú heag.)Não informado. Report of Progress. Toronto, Canada: Geological and Natural History Survey of Canada, 2018.
Lua MLA (8ú heag.)Não informado. Report of Progress. Geological and Natural History Survey of Canada, 2018.
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