Order Primates Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1 111 184 book chapter 0-8018-8221-4 10.5281/zenodo.7316519 Presbytis femoralis subsp. robinsoni Thomas 1910 Synonyms: Presbytis femoralis subsp. keatii Robinson and Kloss 1911 .