Não informado. (2018). Annual Report of the Illinois State Museum of Natural History. Illinois State Museum of Natural History.
Citação do estilo Chicago (17ª ed.)Não informado. Annual Report of the Illinois State Museum of Natural History. Springfield, Ill: Illinois State Museum of Natural History, 2018.
Citação MLA (8ª ed.)Não informado. Annual Report of the Illinois State Museum of Natural History. Illinois State Museum of Natural History, 2018.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.