Cita APA (7a ed.)

Clarke, R. F. (1955). Humility: Thirty short meditations. Catholic Truth Society.

Cita Chicago Style (17a ed.)

Clarke, Richard F. Humility: Thirty Short Meditations. London: Catholic Truth Society, 1955.

Cita MLA (8a ed.)

Clarke, Richard F. Humility: Thirty Short Meditations. Catholic Truth Society, 1955.