Cita APA (7a ed.)

Callen, R. V. (1953). Selected signs of Mary's universal Queenship in medieval liturgy. Marianum.

Cita Chicago Style (17a ed.)

Callen, Robert V. Selected Signs of Mary's Universal Queenship in Medieval Liturgy. Roma: Marianum, 1953.

Cita MLA (9a ed.)

Callen, Robert V. Selected Signs of Mary's Universal Queenship in Medieval Liturgy. Marianum, 1953.