Gorilla beringei ssp. graueri 

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Citation: Plumptre, A., Nixon, S., Caillaud, D., Hall, J.S., Hart, J.A., Nishuli, R. & Williamson, E.A. 2016. Gorilla beringei ssp. graueri (errata version published in 2016). The IUCN Red List of Threatened Species 2016: e.T39995A102328430. . Downloaded on 20 August 2018.
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