References
- Booth , A. H. 1954 . A note on the Colobus Monkeys of the Gold and Ivory Coasts . Ann. Mag. Nat. Hist. , 7 ( 12 ) : 857 – 857 .
- Booth , A. H. 1955 . Speciation in the Mona Monkeys . J. Mammal. , 36 : 434 – 434 .
- Gansdale , G. S. 1948 . Provisional checklist of Gold Coast Mammals , Accra : Government Printing Department .
- Haddow , A. J. 1952 . Field and laboratory studies on an African monkey, Cercopithecus ascanius schmiditi Matschie . Proc. Zool. Soc. Lond. , 122 : 297 – 297 .
- Sanderson , I. T. 1940 . The mammals of the north Cameroons forest area . Trans. Zool. Soc. Lond. , 24 : 623 – 623 .
- Schouteden , H. 1947 . De Zoogdieren van Belgisch Congo en van Ruanda-Urundi . Ann. Mus. Congo Belge , 3 ( 2 ) : 1 – 1 .
- Schwarz , E. 1926 . Die Meerkatzen der Cercopithecus aethiops-Gruppe . Z. Säugetierk. , 1 : 28 – 28 .
- Schwarz , E. 1928 a . The species of the genus Cercocebus . Ann. Mag. Nat. Nist. , 1 ( 10 ) : 644 – 644 .
- Schwarz , E. 1928 b . Notes on the classification of the African monkeys of the genus Cercopithecus Erxleben . Ann. Mag. Nat. Hist. , 1 ( 10 ) : 649 – 649 .