Scott P. Sowa, Gust Annis, Michael E. Morey, and David D. Diamond. 2007. A Gap analysis and comprehensive conservation strategy for riverine ecosystems of Missouri. Ecological Monographs 77:301–334.

Appendix F. A map of stream segments flowing through public land categorized by GAP management status. A status of "1" denotes the highest, most permanent level of maintenance, and "4" represents the lowest level of biodiversity management, or status unknown.