Phylogenetic systematics of the Amolops group of ranid frogs of southeastern Asia and the Greater Sunda IslandsPublished in Fieldiana. Zoology., in 1991, in volume 63, pages 1-42Systematic review of Philippine macaques (Primates, Cercopithecidae: Macaca fascicularis subspp.)Published in Fieldiana: Zoology, in 1991, in volume 64, pages 1-44
Systematic review of Philippine macaques (Primates, Cercopithecidae: Macaca fascicularis subspp.)Published in Fieldiana: Zoology, in 1991, in volume 64, pages 1-44