APA-referens (7:e uppl.)

Berwick, R. C., & Chomsky, N. (2017). Why only us: Language and evolution (First paperback edition.). The MIT Press.

Chicago-referens (17:e uppl.)

Berwick, Robert C., och Noam Chomsky. Why Only Us: Language and Evolution. First paperback edition. Cambridge, Massachusetts: The MIT Press, 2017.

MLA-referens (9:e uppl.)

Berwick, Robert C., och Noam Chomsky. Why Only Us: Language and Evolution. First paperback edition. The MIT Press, 2017.