APA (7th ed.) Citation

Lehmann, W. P. (1992). Historical linguistics: An introduction (3. ed.). Routledge.

Chicago Style (17th ed.) Citation

Lehmann, Winfred P. Historical Linguistics: An Introduction. 3. ed. London u.a: Routledge, 1992.

MLA (9th ed.) Citation

Lehmann, Winfred P. Historical Linguistics: An Introduction. 3. ed. Routledge, 1992.