Não informado. (1876). Bulletin of the Illinois State Museum of Natural History. Illinois State Museum of Natural History.
Cita Chicago Style (17a ed.)Não informado. Bulletin of the Illinois State Museum of Natural History. Springfield, Ill: Illinois State Museum of Natural History, 1876.
Cita MLA (8a ed.)Não informado. Bulletin of the Illinois State Museum of Natural History. Illinois State Museum of Natural History, 1876.
Precaución: Estas citas no son 100% exactas.