1. Alva Ixtlilxóchitl, F. de. (1979). Nezahualcoyotl Acolmitztli: Selección de Textos. México: Estado de México.
2. Betanzos, J. de. 1557. (1996). Narrative of the Incas (trans: Hamilton, R. & Buchanan, D.). Austin: University of Texas Press.
3. Betzig, L. L. (2012). Means, variances and ranges in reproductive success: Comparative evidence. Evolution and Human Behavior, 33, 309–317.
4. Betzig, L. L. (2014). Eusociality in history. Human Nature, 25, 80–99.
5. Blurton Jones, N. (2016). Demography and evolutionary ecology of hadza hunter-gatherers. Cambridge: Cambridge University Press.