APA (7th ed.) Citation

Pius XII, P. (1958). Audience invisible: Broadcast address of His Holiness Pius XII ... to the cloistered nuns of the world, 1958. Catholic Truth Society.

Chicago Style (17th ed.) Citation

Pius XII, Pope. Audience Invisible: Broadcast Address of His Holiness Pius XII ... to the Cloistered Nuns of the World, 1958. London: Catholic Truth Society, 1958.

MLA (8th ed.) Citation

Pius XII, Pope. Audience Invisible: Broadcast Address of His Holiness Pius XII ... to the Cloistered Nuns of the World, 1958. Catholic Truth Society, 1958.