APA (7th ed.) Citation

Gregorius VII, s., & Cowdrey, H. E. J. (1972). The Epistolae vagantes of Pope Gregory VII. Clarendon Press.

Chicago Style (17th ed.) Citation

Gregorius VII, saint, and H. E. J. Cowdrey. The Epistolae Vagantes of Pope Gregory VII. Oxford: Clarendon Press, 1972.

MLA (8th ed.) Citation

Gregorius VII, saint, and H. E. J. Cowdrey. The Epistolae Vagantes of Pope Gregory VII. Clarendon Press, 1972.