Printes, Rodrigo C., Marcus V. A. Liesenfeld, and Leandro Jerusalinsky. 2001. “Alouatta Guariba Clamitans Cabrera, 1940: A New Southern Limit for the Species and for Neotropical Primates”. Neotropical Primates 9 (3): 118-21. https://doi.org/10.62015/np.2001.v9.493.