Peattie, Roderick, Geography in Human Destiny.
New York: Stewart, 1940.
Poole, Reginald Lane, ed., Iohannis Wycliffe Tractatus De civili dominio, vols. I–IV. London: Truebner, 1885.
Rahner, Hugo, Abendländische Kirchenfreiheit: Dokumente über Kirche und Staat im frühen Christentum.
Einsiedeln: Benzinger, 1943.
Shaw, George Bernard, Saint Joan, New York: Penguin Books, 1946.
Thiel, A., Epistolae Romanorum Pontificum.
Braunsberg, 1863.
Toynbee, Arnold J., A Study of History. 2nd ed., 7 vols. London: Oxford University Press, 1945.
Voigt, G., Enea Silvio de Piccolomini als Papst Pius II und sein Zeitalter. 3 vols. Berlin: 1856–1863.
Winter, Zikmund, Dējiny kroje v zemi̍ch c̄esky̍ch. (History of Costume in Czech Lands). Prague: S̄ima̍c̄ek, 1893.
K. CHRISTIAN ATTITUDES TO WAR
Allen, J.W., A History of Political Thought in the Sixteenth Century, New York, 1928.
Bainton, Roland, The Church and War: Historic Attitudes Toward Christian Participation. Social Action Reprint of vol.XI:1 (January 15, 1945).
Cadoux, A.T., The Early Christian Attitude to War.
London: 1919.
, The Early Church and the World.
Edinburgh, 1925.
Erdmann, Carl, Die Entstehung des Kreuzzuggedankens.
Stuttgart: 1935.
Harnack, Adolf, Militia Christi. Tübingen, 1905.
