Παραπομπή σε μορφή APA (7η εκδ.)

Karras, R. M. (2012). Unmarriages: Women, men, and sexual unions in the Middle Ages. University of Pennsylvania Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Karras, Ruth Mazo. Unmarriages: Women, Men, and Sexual Unions in the Middle Ages. Philadelphia: University of Pennsylvania Press, 2012.

Παραπομπή σε μορφή MLA (9th εκδ.)

Karras, Ruth Mazo. Unmarriages: Women, Men, and Sexual Unions in the Middle Ages. University of Pennsylvania Press, 2012.