Cita APA (7th ed.)
Tierney, B. (1964). The crisis of Church and State, 1050-1300. Prentice-Holl.
Cita Chicago (17th ed.)
Tierney, Brian. The Crisis of Church and State, 1050-1300. New Jersey: Prentice-Holl, 1964.
Cita MLA (9th ed.)
Tierney, Brian. The Crisis of Church and State, 1050-1300. Prentice-Holl, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.