NEWELL, K. David; WATNEY, W. Lynn; CHENG, Stephen W.L.; BROWNRIGG, Richard L. Stratigraphic and Spatial Distribution of Oil and Gas Production in Kansas. Bulletin (Kansas Geological Survey), [S. l.], p. 1–86, 1987. DOI: 10.17161/kgsbulletin.no.23611. Disponível em: https://journals.ku.edu/kgsbulletin/article/view/23611. Acesso em: 13 apr. 2025.