Sumatra-Orang-Utan (Pongo abelii)
Systematik
Literatur
[1] Rowe, N. 1996;
Singleton, I., Wich, S.A. & Griffiths, M. 2008. Pongo abelii. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.1. <www.iucnredlist.org>. Downloaded on 21 October 2011;
Macdonald, D. (2001) The New Encyclopedia of Mammals. Oxford University Press, Oxford.
Singleton, I., Wich, S.A. & Griffiths, M. 2008. Pongo abelii. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.1. <www.iucnredlist.org>. Downloaded on 21 October 2011;
Macdonald, D. (2001) The New Encyclopedia of Mammals. Oxford University Press, Oxford.
