Hock, H. H. (1991). Principles of historical linguistics (2nd edition.). Mouton de Gruyter.
Chicago Style (17th ed.) CitationHock, Hans Henrich. Principles of Historical Linguistics. 2nd edition. Berlin: Mouton de Gruyter, 1991.
MLA (8th ed.) CitationHock, Hans Henrich. Principles of Historical Linguistics. 2nd edition. Mouton de Gruyter, 1991.
Warning: These citations may not always be 100% accurate.