1988. Anomalies and atavisms in appendicular myology. In: J. Schwartz, Editor, Orang-utan Biology. New York: Oxford University Press. p 331-345

1993. The functional anatomy of the hip and thigh in primates. In: D. L. Gebo, Editor, Postcranial Adaptation in Nonhuman Primates. DeKalb: Northern Illinois University Press.

1988. The functional morphology of the prosimian hindlimb: Some correlates between anatomy and positional behavior. PhD dissertation, University of Washington.

1937. The premaxilla in primates. Quarterly Review of Biology 10;32-59, 181-208

1995. Human Osteology: A Laboratory and Field Manual. 4th ed. Columbia: Special Publication No. 2 of the Missouri Archaeological Society.

1995. Functional anatomy of the trunk musculature in the slow loris (Nycticebus coucang). Am J Phys Anthropol 97:367-379.

2000. Molecular systematics of the Old World monkey tribe Papionini: analysis of the total available genetic sequences. J Hum Evol 38:235-256

1960. Primates. Comparative Anatomy and Taxonomy IV Cebidae, Part A. Edinburgh: The Edinburgh University Press.

1975. Osteology and myology of the lemuriform postcranial skeleton. In: Tattersall I, Sussman RW, editors. Lemur biology. New York: Plenum Press. 149-192

2006. Phylogenetic relationships among the Lorisoidea as indicated by craniodental morphology and mitochondrial sequence data. Am. J. Primatol 69:6-15

2009. Molecular phylogeny and evolution of prosimians based on complete sequences of mitochondrial DNAs. Gene 441:53-66

2001. Molecular phylogeny of the Lemur family Cheirogaleidae (Primates) based on mitochondrial DNA sequences. Molecular Phylogenetics and Evolution 19(1):45-56

2004. primate jumpting genes elucidate strepsirrhine phylogeny. PNAS 101(29):10650-10654

1996. Molecular phylogeny of the New World monkeys (Platyrrhini, Primates) based on two unlinked nuclear genes: IRBP intron 1 and E-globin sequences. Am. J. Phys. Anthropol. 100 (1996):153-179

1995. Skeleton Keys: An introduction to the human skeletal morphology, development and analysis. New York: Oxford University Press.

1993. Functional Morphology of the Vertebral Column in Primates. In: Gebo DL editor. Postcranial Adapations in Nonhuman Primates. DeKalb: Northern Illionoi University Press. p 121-149

1988. The Anatomy and Biology of the Human Skeleton. College Station: Texas A&M University Press.

2006. Mitochondrial data support and odd-nosed colobine clade. Molecular Phylogenetics and Evolution 40:1-7

1973. An Atlas of Primate Gross Anatomy: Baboon, Chimpanzee and Man. Seattle:Univ. of Washington Press.

2000. Human Osteology. 2nd ed. San Diego: Academic Press.

2007. Molecular Phylogenetics and Evolution 45:620-628

2006. Molecular phylogenetic affinities of the simakobu monkey (Simias concolor). Molecular phylogenetics and Evolution 39:887-892

In Press: A fully resolved genus level phylogeny of neotropical primates (Platyrrhini). Mol. Phylogenet. Evol. (2009) doi: 10.10106/j/ympev.2009.07.019

1991. Morphology and variability of masticatory structures in the orangutan. Int. J. Primatol 12(1):45-65.

1925. The anatomy of Tarsius spectrum. Proceedings of the Zoological Society of London 1071-1185.

2005. A mobile element based phylogeny of Old World monkeys. Molecular Phylogenetics and Evolution 37:875-880