BRADY, Lawrence L.; MAPLES, Christopher G. A Reference Section for the Pennsylvanian Lorton Coal Bed (Root Shale: Wabaunsee Group) in Kansas. Bulletin (Kansas Geological Survey), [S. l.], n. 230, p. 17–20, 2024. Disponível em: https://journals.ku.edu/kgsbulletin/article/view/20482.. Acesso em: 3 jul. 2024.