Travis, J. (1984). In defense of faith: The theology of patriarch Nikephoros of Constantinople. Hellenic College Press.
Citazione stile Chigago Style (17a edizione)Travis, John. In Defense of Faith: The Theology of Patriarch Nikephoros of Constantinople. Brookline, Mass: Hellenic College Press, 1984.
Citatione MLA (8a ed.)Travis, John. In Defense of Faith: The Theology of Patriarch Nikephoros of Constantinople. Hellenic College Press, 1984.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.