APA (7th ed.) Citation

Halliday, M. A. K. (1994). An introduction to functional grammar (2nd ed.). E. Arnold.

Chicago Style (17th ed.) Citation

Halliday, M. A. K. An Introduction to Functional Grammar. 2nd ed. London: E. Arnold, 1994.

MLA (9th ed.) Citation

Halliday, M. A. K. An Introduction to Functional Grammar. 2nd ed. E. Arnold, 1994.