Boubli, J.P. 1997. A study of the black uakari, Cacajao melanocephalus melanocephalus, in the Pico da Neblina National Park, Brazil. Neotropical Primates. 5, 4 (Dec. 1997), 113–115. DOI:https://doi.org/10.62015/np.1997.v5.386.