Παραπομπή σε μορφή APA (7η εκδ.)

Hoffmann, C., & Ytsma, J. (2004). Trilingualism in family, school and community. Multilingual Matters.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hoffmann, Charlotte, και Jehannes Ytsma. Trilingualism in Family, School and Community. Clevedon: Multilingual Matters, 2004.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hoffmann, Charlotte, και Jehannes Ytsma. Trilingualism in Family, School and Community. Multilingual Matters, 2004.