APA (7th ed.) Citation

Kruisinga, E., Hedeman, C., & Westerbeek, J. J. (1957). An introduction to the study of English sounds (11th ed.). Noordhoff.

Chicago Style (17th ed.) Citation

Kruisinga, E., C. Hedeman, and J. J. Westerbeek. An Introduction to the Study of English Sounds. 11th ed. Groningen: Noordhoff, 1957.

MLA (8th ed.) Citation

Kruisinga, E., et al. An Introduction to the Study of English Sounds. 11th ed. Noordhoff, 1957.