APA (7th ed.) Citation

Hock, H. H. (1991). Principles of historical linguistics (2nd ed., rev. and updated.). Mouton de Gruyter.

Chicago Style (17th ed.) Citation

Hock, Hans Henrich. Principles of Historical Linguistics. 2nd ed., rev. and updated. Berlin ; New York: Mouton de Gruyter, 1991.

MLA (9th ed.) Citation

Hock, Hans Henrich. Principles of Historical Linguistics. 2nd ed., rev. and updated. Mouton de Gruyter, 1991.