Não informado. (2002). Bulletin of the Geological and Natural History Survey of the Chicago Academy of Sciences. Chicago Academy of Sciences.
Citace podle Chicago (17th ed.)Não informado. Bulletin of the Geological and Natural History Survey of the Chicago Academy of Sciences. Chicago, Ill: Chicago Academy of Sciences, 2002.
Citace podle MLA (8th ed.)Não informado. Bulletin of the Geological and Natural History Survey of the Chicago Academy of Sciences. Chicago Academy of Sciences, 2002.
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