APA (7th ed.) Citation

Clark, J., & Yallop, C. (1990). An introduction to phonetics and phonology. B. Blackwell.

Chicago Style (17th ed.) Citation

Clark, John, and Colin Yallop. An Introduction to Phonetics and Phonology. Oxford, UK ; Cambridge, MA: B. Blackwell, 1990.

MLA (9th ed.) Citation

Clark, John, and Colin Yallop. An Introduction to Phonetics and Phonology. B. Blackwell, 1990.