APA

Halliday M. A. K., Webster J. J., . (2009). Continuum companion to systemic functional linguistics. New York: Continuum.

Chicago

Halliday M A K, Webster Jonathan J, . 2009. Continuum companion to systemic functional linguistics. New York: Continuum.

Harvard

Halliday M. A. K., Webster J. J., . (2009). Continuum companion to systemic functional linguistics. New York: Continuum.

MLA

Halliday M A K, Webster Jonathan J, . Continuum companion to systemic functional linguistics. New York: Continuum. 2009.