Clarke, R. F. (1955). Humility: Thirty short meditations. Catholic Truth Society.
Chicagoスタイル(17版)引用形式Clarke, Richard F. Humility: Thirty Short Meditations. London: Catholic Truth Society, 1955.
MLA(8版)引用形式Clarke, Richard F. Humility: Thirty Short Meditations. Catholic Truth Society, 1955.
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