Cita APA (7a ed.)

Chomsky, N. (1994). Barriers (5th printing.). MIT.

Cita Chicago Style (17a ed.)

Chomsky, Noam. Barriers. 5th printing. Cambridge (Massachusetts) [etc.]: MIT, 1994.

Cita MLA (9a ed.)

Chomsky, Noam. Barriers. 5th printing. MIT, 1994.