Não informado. (1883). Bulletin of the Chicago Academy of Sciences. Chicago Academy of Sciences.
Chicago-referens (17:e uppl.)Não informado. Bulletin of the Chicago Academy of Sciences. Chicago, Ill: Chicago Academy of Sciences, 1883.
MLA-referens (8:e uppl.)Não informado. Bulletin of the Chicago Academy of Sciences. Chicago Academy of Sciences, 1883.
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