|
Pygathrix avunculus
|
|
|
Colin P. Groves, 1993, Order Primates, Mammal Species of the World (2 nd Edition), Washington and London: Smithsonian Institution Press, pp. 243-277
: 272
|
272 |
|
Pygathrix avunculus
|
|
|
James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Primates, Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA: Alien Press, Inc. & The Association of Systematics Collections, pp. 216-243
: 240
|
240 |
