Cita APA (7th ed.)

McGregor, W. B. (1997). Semiotic grammar. Clarendon Press.

Cita Chicago (17th ed.)

McGregor, William B. Semiotic Grammar. Oxford: Clarendon Press, 1997.

Cita MLA (9th ed.)

McGregor, William B. Semiotic Grammar. Clarendon Press, 1997.