O'Brien, I. (1978). Francis of Assisi: Mirror of Christ. Franciscan Herald Press.
Chicagoスタイル(17版)引用形式O'Brien, Isidore. Francis of Assisi: Mirror of Christ. Chicago: Franciscan Herald Press, 1978.
MLA(8版)引用形式O'Brien, Isidore. Francis of Assisi: Mirror of Christ. Franciscan Herald Press, 1978.
警告: この引用は必ずしも正確ではありません.