Não informado. (1885). Contributions to canadian palaeontology. Geological and Natural History Survey of Canada.
Chicago-Zitierstil (17. Ausg.)Não informado. Contributions to Canadian Palaeontology. Montreal, Canada: Geological and Natural History Survey of Canada, 1885.
MLA-Zitierstil (8. Ausg.)Não informado. Contributions to Canadian Palaeontology. Geological and Natural History Survey of Canada, 1885.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.