APA (7th ed.) Citation

Halliday, M. A. K. (1986). An introduction to functional grammar. Edward Arnold.

Chicago Style (17th ed.) Citation

Halliday, M. A. K. An Introduction to Functional Grammar. London [etc.]: Edward Arnold, 1986.

MLA (9th ed.) Citation

Halliday, M. A. K. An Introduction to Functional Grammar. Edward Arnold, 1986.

Warning: These citations may not always be 100% accurate.