1. Bickerton, D. (1981). Roots of language. Language Science Press.
2. Bickerton, D. (2002). Foraging versus social intelligence in the evolution of protolanguage. In A. Wray (Ed.), The transition to language (pp. 207–225). Oxford Univ. Press.
3. Bickerton, D. (2009). Adam's tongue: How humans made language, how language made humans. Hill and Wang.
4. Boehm, C. (2006). Interactions of culture and natural selection. In S. Levinson & P. Jaisson (Eds.), Evolution and culture. A Fyssen foundation symposium (pp. 79–104). MIT Press.
5. Boehm, C. (2015). The evolution of social control. In J. H. Turner, R. Machalek, & A. Maryanski (Eds.), Handbook on evolution and society. Toward an evolutionary social science (pp. 424–440). Paradigm Publishers.