Matt Cartmill, Fred H. Smith, The Human Lineage, John Wiley & Sons (2009), p. 449.
doi.org
Templeton, A. (2016). "Evolution and Notions of Human Race". In Losos, J.; Lenski, R. (eds.). How Evolution Shapes Our Lives: Essays on Biology and Society. Princeton; Oxford: Princeton University Press. pp. 346–361. doi:10.2307/j.ctv7h0s6j.26. ... the answer to the question whether races exist in humans is clear and unambiguous: no.