Hylobates concolor
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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
: 241
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241 |
Hylobates concolor
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Colin P. Groves, 1993, Order Primates, Mammal Species of the World (2 nd Edition), Washington and London: Smithsonian Institution Press, pp. 243-277
: 275
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275 |