Davenport, M., & Hannahs, S. J. (2011). Introducing phonetics and phonology (3rd ed.). Hodder Education.

Davenport, Michael, and S. J. Hannahs. Introducing Phonetics and Phonology. 3rd ed. London: Hodder Education, 2011.

Davenport, Michael, and S. J. Hannahs. Introducing Phonetics and Phonology. 3rd ed. Hodder Education, 2011.