Cita APA (7a ed.)

Elfer, C. J., & Roberts, S. L. (2018). Basque Language: A Practical Introduction. Information Age Publishing, Inc..

Cita Chicago Style (17a ed.)

Elfer, Charles J., y Scott L. Roberts. Basque Language: A Practical Introduction. Charlotte, NC: Information Age Publishing, Inc., 2018.

Cita MLA (8a ed.)

Elfer, Charles J., y Scott L. Roberts. Basque Language: A Practical Introduction. Information Age Publishing, Inc., 2018.