APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Clark, John, and Colin Yallop. An Introduction to Phonetics and Phonology. Oxford: Basil Blackwell, 1990.

MLA (8th ed.) Citation

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

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