Cita APA (7a ed.)

Ferme, B. E., & King, W. J. (2007). Introduction to the history of the sources of canon law: The ancient law up to the Decretum of Gratian. Wilson & Lafleur.

Cita Chicago Style (17a ed.)

Ferme, Brian Edwin, y William J. King. Introduction to the History of the Sources of Canon Law: The Ancient Law Up to the Decretum of Gratian. Montréal: Wilson & Lafleur, 2007.

Cita MLA (9a ed.)

Ferme, Brian Edwin, y William J. King. Introduction to the History of the Sources of Canon Law: The Ancient Law Up to the Decretum of Gratian. Wilson & Lafleur, 2007.