APA (7th ed.) Citation

Grignani, M. Pío XII (1939-1958). Opus iustitiae pax!

Chicago Style (17th ed.) Citation

Grignani, Mario. Pío XII (1939-1958). Opus Iustitiae Pax!

MLA (9th ed.) Citation

Grignani, Mario. Pío XII (1939-1958). Opus Iustitiae Pax!

Warning: These citations may not always be 100% accurate.