APA (7th ed.) Citation

Halliday, M. A. K. (1977). Explorations in the functions of language. Elsevier.

Chicago Style (17th ed.) Citation

Halliday, Michael A. K. Explorations in the Functions of Language. New York [u.a.]: Elsevier, 1977.

MLA (9th ed.) Citation

Halliday, Michael A. K. Explorations in the Functions of Language. Elsevier, 1977.