Παραπομπή σε μορφή APA (7η εκδ.)

Koopmans, R. (2005). Contested citizenship: Immigration and cultural diversity in Europe. University of Minnesota Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Koopmans, Ruud. Contested Citizenship: Immigration and Cultural Diversity in Europe. Minneapolis: University of Minnesota Press, 2005.

Παραπομπή σε μορφή MLA (9th εκδ.)

Koopmans, Ruud. Contested Citizenship: Immigration and Cultural Diversity in Europe. University of Minnesota Press, 2005.