Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Richards, J. (1979). The popes and the papacy in the early middle ages, 476 - 752.

Chicago Citation Edition Citation

Richards, J. The Popes and the Papacy in the Early Middle Ages, 476 - 752. London, 1979.

MLA Citation Edition Citation

Richards, J. The Popes and the Papacy in the Early Middle Ages, 476 - 752. 1979.