LUTZ-GARIHAN, Anne B; CUFFEY, Rodger J. Stratigraphy of the Lower Permian Wreford Megacyclothem in Southernmost Kansas and Northern Oklahoma. Bulletin (Kansas Geological Survey), [S. l.], n. 216, p. 1–19, 1979. Disponível em: https://journals.ku.edu/kgsbulletin/article/view/22266.. Acesso em: 22 jul. 2024.