APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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