2010Human Genetic Variation, Relationships of Peoples of sub-Saharan Africa and Implications for Healthcare. London: University College London. Recuperado dediscovery.ucl.ac.uk/1310136/1/1310136.pdf.
2009 “Getting off the GoldVarb Standard: Introducing Rbrul for Mixed-Effects Variable Rule Analysis.” Language and Linguistics Compass3 (1): 359–383. doi: 10.1111/j.1749‑818X.2008.00108.x
2012Spanish in New York: Language Contact, Dialect Leveling, and Structural Continuity. Oxford: Oxford University Press. doi: 10.1093/acprof:oso/9780199737406.001.0001