Παραπομπή σε μορφή APA (7η εκδ.)

Extra, G., & Ya?gmur, K. (2004). Urban multilingualism in Europe: Immigrant minority languages at home and school. Multilingual Matters.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Extra, Guus, και Kutlay Ya?gmur. Urban Multilingualism in Europe: Immigrant Minority Languages at Home and School. Clevedon ; Buffalo: Multilingual Matters, 2004.

Παραπομπή σε μορφή MLA (9th εκδ.)

Extra, Guus, και Kutlay Ya?gmur. Urban Multilingualism in Europe: Immigrant Minority Languages at Home and School. Multilingual Matters, 2004.