Title: The Biology of Snub-Nosed Monleys, Douc Langurs, Proboscis Monkeys, and Simakobus
Subjects: Monkeys, Rhinopithecus, Douc, Nasalis, Snub-nosed monkeys, Doucs, Simakobus, Schlankaffen, Kleideraffe, Nasenaffe, Systematik, Cercopithecidae