1. The Expensive-Tissue Hypothesis: The Brain and the Digestive System in Human and Primate Evolution
2. , and (1990) Ecology: Individuals, Populations and Communities. 2nd ed. Boston: Blackwell Scientific.
3. and (1985) Paleoenvironments, stratigraphy, and taphonomy in the African Pliocene and early Pleistocene. In (ed.): Ancestors: The Hard Evidence. New York: Alan R. Liss, pp. 60–62.
4. Status ofAustralopithecus afarensis
5. (1945) Bioenergetics and Growth. New York: Reinhold.