Butynski, T. M. Tana River Red Colobus, Procolobus rufomitratus (Peters, 1879). R. A. Mittermeier, C. Valladares-Pádua, A. B. Rylands, A. A. Eudey, T. M. Butynski, J. U. Ganzhorn, R. Kormos, J. M. Aguiar and S. Walker (eds.) (编). Primates in Peril: The World's 25 Most Endangered Primates 2004-2006. Washington, DC: Report to IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS) and Conservation International (CI). 2005: 17. (原始内容存档于2011-07-23).
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Butynski, T. M. Tana River Red Colobus, Procolobus rufomitratus (Peters, 1879). R. A. Mittermeier, C. Valladares-Pádua, A. B. Rylands, A. A. Eudey, T. M. Butynski, J. U. Ganzhorn, R. Kormos, J. M. Aguiar and S. Walker (eds.) (编). Primates in Peril: The World's 25 Most Endangered Primates 2004-2006. Washington, DC: Report to IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS) and Conservation International (CI). 2005: 17. (原始内容存档于2011-07-23).