1. & (Eds.). (1970). Development and evolution of behavior. San Francisco: Freeman.
2. & (Eds.). (1972). Selected writings of T. C. Schneirla. San Francisco: Freeman.
3. (1988). The evolution of complexity by natural selection. Princeton, NJ: Princeton University Press.
4. (1999). Evolutionary psychology: The new science of mind. Needham Heights, MA: Allyn & Bacon.
5. THEORY OF INTEGRATIVE LEVELS