1. Abegglen, H., and Abegglen, J.-J. (1976). Field observation of a birth in hamadryas baboons.Folia primatol. 26: 54–56.
2. Altmann, J. (1980).Baboon Mothers and Infants, Harvard University Press, Cambridge.
3. Altmann, S. A., and Altmann, J. (1970).Baboon Ecology: African Field Research, University of Chicago Press, Chicago.
4. Atwood, R. J. (1976). Parturitional posture and related birth behavior.Acta Obstet. Gynecol. Scand. Suppl. 57: 1–25.
5. Brandt, E. M., and Mitchell, G. (1971). Parturition in primates: Behavior related to birth. In Rosenblum, L. A. (eds.),Primate Behavior: Developments in Field and Laboratory Research, Academic Press, New York, pp. 178–225.