Cita APA (7a ed.)

Bickerton, D. (2015). Roots of language. Language Science Press.

Cita Chicago Style (17a ed.)

Bickerton, Derek. Roots of Language. Berlin, Germany: Language Science Press, 2015.

Cita MLA (9a ed.)

Bickerton, Derek. Roots of Language. Language Science Press, 2015.