Cita APA (7a ed.)

Voyles, J. B., & Barrack, C. M. (2009). An Introduction to Proto-Indo-European and the Early Indo-European Languages. Slavica Publishers.

Cita Chicago Style (17a ed.)

Voyles, Joseph B., y Charles Michael Barrack. An Introduction to Proto-Indo-European and the Early Indo-European Languages. Bloomington: Slavica Publishers, 2009.

Cita MLA (8a ed.)

Voyles, Joseph B., y Charles Michael Barrack. An Introduction to Proto-Indo-European and the Early Indo-European Languages. Slavica Publishers, 2009.