Não informado. (1971). Mineral Bulletin. Energy, Mines and Resources Canada, Minerals.
Lua i Stíl Chicago (17ú heag.)Não informado. Mineral Bulletin. Ottawa: Energy, Mines and Resources Canada, Minerals, 1971.
Lua MLA (8ú heag.)Não informado. Mineral Bulletin. Energy, Mines and Resources Canada, Minerals, 1971.
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