Branch, L.C. (1983). "Seasonal and habitat differences in the abundance of primates in the Amazon (Tapajos) National Park, Brazil". Primates. 24 (3): 424–431. doi:10.1007/BF02381987. S2CID40253046.
Branch, L.C. (1983). "Seasonal and habitat differences in the abundance of primates in the Amazon (Tapajos) National Park, Brazil". Primates. 24 (3): 424–431. doi:10.1007/BF02381987. S2CID40253046.