Cita APA (7a ed.)

Keppel, L. O. (1932). The passing of the Middle Ages. Catholic Truth Society.

Cita Chicago Style (17a ed.)

Keppel, Leopoldina Olivia. The Passing of the Middle Ages. London: Catholic Truth Society, 1932.

Cita MLA (8a ed.)

Keppel, Leopoldina Olivia. The Passing of the Middle Ages. Catholic Truth Society, 1932.