Cita APA (7th ed.)

Jessner, U., & Kramsch, C. (2015). The multilingual challenge: Cross-disciplinary perspectives. De Gruyter Mouton.

Cita Chicago (17th ed.)

Jessner, Ulrike, i Claire Kramsch. The Multilingual Challenge: Cross-disciplinary Perspectives. Berlin, [Germany] ; Boston, [Massachusetts]: De Gruyter Mouton, 2015.

Cita MLA (9th ed.)

Jessner, Ulrike, i Claire Kramsch. The Multilingual Challenge: Cross-disciplinary Perspectives. De Gruyter Mouton, 2015.