Taxon - Odkazy a literatura
druh
Presbytis fredericae (Sody, 1930)
IUCN Red List of Threatened Species 2024-1 [18133]
IUCN Red List of Threatened Species [http://www.iucnredlist.org/] [jako Presbytis fredericae (Sody, 1930)]
Datum citace: 29. leden 2024
ASM Mammal Diversity Database 2.1 [1006873]
ASM Mammal Diversity Database [https://www.mammaldiversity.org/], American Society of Mammalogists [jako Presbytis fredericae (Sody, 1930)]
Datum citace: 29. květen 2025