APA (7th ed.) Citation

Crowley, T. (1997). An introduction to historical linguistics (3a. ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Crowley, Terry. An Introduction to Historical Linguistics. 3a. ed. Auckland: Oxford University Press, 1997.

MLA (9th ed.) Citation

Crowley, Terry. An Introduction to Historical Linguistics. 3a. ed. Oxford University Press, 1997.