Hock, H. H., & Joseph, B. D. (1996). Language history, language change, and language relationship: An introduction to historical and comparative linguistics (1a. ed.). Mouton de Gruyter.

Hock, Hans Henrich, and Brian D. Joseph. Language History, Language Change, and Language Relationship: An Introduction to Historical and Comparative Linguistics. 1a. ed. Berlín: Mouton de Gruyter, 1996.

Hock, Hans Henrich, and Brian D. Joseph. Language History, Language Change, and Language Relationship: An Introduction to Historical and Comparative Linguistics. 1a. ed. Mouton de Gruyter, 1996.