Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Hock, Hans Henrich. Principles of Historical Linguistics. 2nd rev. and updated ed. Berlin [etc.]: Mouton de Gruyter, 1991.

Cita MLA (9a ed.)

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