Claude, R. (1960). The soul of Pier-Giorgio Frassati. Spiritual Book Association.
Chicagoスタイル(17版)引用形式Claude, Robert. The Soul of Pier-Giorgio Frassati. New York: Spiritual Book Association, 1960.
MLA(8版)引用形式Claude, Robert. The Soul of Pier-Giorgio Frassati. Spiritual Book Association, 1960.
警告: この引用は必ずしも正確ではありません.