Não informado. (1885). Contributions to canadian palaeontology. Geological and Natural History Survey of Canada.
Citace podle Chicago (17th ed.)Não informado. Contributions to Canadian Palaeontology. Montreal, Canada: Geological and Natural History Survey of Canada, 1885.
Citace podle MLA (8th ed.)Não informado. Contributions to Canadian Palaeontology. Geological and Natural History Survey of Canada, 1885.
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