Loud calls of male purple-faced langurs (Presbytis senex).

Cite this paper

@article{Hohmann1990LoudCO, title={Loud calls of male purple-faced langurs (Presbytis senex).}, author={Gottfried Hohmann}, journal={Folia primatologica; international journal of primatology}, year={1990}, volume={55 3-4}, pages={200-6} }