Cita APA (7th ed.)

Hawkins, J. A. (1988). Explaining language universals. B. Blackwell.

Cita Chicago (17th ed.)

Hawkins, John A. Explaining Language Universals. Oxford: B. Blackwell, 1988.

Cita MLA (9th ed.)

Hawkins, John A. Explaining Language Universals. B. Blackwell, 1988.