Cita APA

Gregorio VII, P., & Cowdrey, H. E. J. 1. (1972). The epistolae vagantes of Pope Gregory VII. Oxford: At the Clarendon Press.

Citación estilo Chicago

Gregorio VII, Papa, and H. E. J. 1926-2009 Cowdrey. The Epistolae Vagantes of Pope Gregory VII. Oxford: At the Clarendon Press, 1972.

Cita MLA

Gregorio VII, Papa, and H. E. J. 1926-2009 Cowdrey. The Epistolae Vagantes of Pope Gregory VII. Oxford: At the Clarendon Press, 1972.