APA (7th ed.) Citation

Clark, J. E., Yallop, C., & Fletcher, J. (2007). An introduction to Phonetics and Phonology (3a. ed.). Blackwell Publishing.

Chicago Style (17th ed.) Citation

Clark, John Ellery, Colin Yallop, and Janet Fletcher. An Introduction to Phonetics and Phonology. 3a. ed. Malden: Blackwell Publishing, 2007.

MLA (9th ed.) Citation

Clark, John Ellery, et al. An Introduction to Phonetics and Phonology. 3a. ed. Blackwell Publishing, 2007.