Hammerling, R. (2008). A history of prayer: The first to the fifteenth century. Brill's companions to the Christian tradition.
Citação norma ChicagoHammerling, Roy. "A History of Prayer: The First to the Fifteenth Century." Brill's Companions to the Christian Tradition 2008.
Citação norma MLAHammerling, Roy. "A History of Prayer: The First to the Fifteenth Century." Brill's Companions to the Christian Tradition, 2008.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.