Não informado. (1883). Bulletin of the Chicago Academy of Sciences. Chicago Academy of Sciences.
Chicago-viite (17. p.)Não informado. Bulletin of the Chicago Academy of Sciences. Chicago, Ill: Chicago Academy of Sciences, 1883.
MLA-viite (8. p.)Não informado. Bulletin of the Chicago Academy of Sciences. Chicago Academy of Sciences, 1883.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.