Cita APA (7th ed.)
Fonnesberg-Schmidt, I. (2007). The popes and the Baltic crusades, 1147-1254. Brill.
Cita Chicago (17th ed.)
Fonnesberg-Schmidt, Iben. The Popes and the Baltic Crusades, 1147-1254. Leiden ; Boston: Brill, 2007.
Cita MLA (9th ed.)
Fonnesberg-Schmidt, Iben. The Popes and the Baltic Crusades, 1147-1254. Brill, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.