Cita APA (7a ed.)

Romanistentag, Dufter, A., & Jacob, D. (2009). Focus and background in Romance languages. John Benjamins.

Cita Chicago Style (17a ed.)

Romanistentag, Andreas Dufter, y Daniel Jacob. Focus and Background in Romance Languages. Amsterdam ; Philadelphia: John Benjamins, 2009.

Cita MLA (9a ed.)

Romanistentag, et al. Focus and Background in Romance Languages. John Benjamins, 2009.