Ullrey, D. E. 1., Allen, M. E., Ausman, L. M., Conklin-Brittain, N. L., & Edwards, M. S. (2003). Nutrient requirements of nonhuman primates (Second revised edition.). Washington, D. C.: The National Academies Press.

Ullrey, Duane Earl 1928-, Mary Eleanor Allen, Lynne M. Ausman, Nancy L. Conklin-Brittain, and Mark S. Edwards. Nutrient Requirements of Nonhuman Primates. Second revised edition. Washington, D. C.: The National Academies Press, 2003.

Ullrey, Duane Earl 1928-, et al. Nutrient Requirements of Nonhuman Primates. Second revised edition. Washington, D. C.: The National Academies Press, 2003.