SWINEFORD, Ada; LEONARD, Bryon A.; FRYE, John C. Petrology of the Pliocene Pisolitic Limestone of the Great Plains. Bulletin (Kansas Geological Survey), [S. l.], n. 130, p. 97–127, 1958. DOI: 10.17161/kgsbulletin.no.130.22130. Disponível em: https://journals.ku.edu/kgsbulletin/article/view/22130. Acesso em: 9 apr. 2025.