APA (7th ed.) Citation

Gwynn, D. (1941). The Vatican and war in Europe. Burns Oates & Washbourne.

Chicago Style (17th ed.) Citation

Gwynn, Denis. The Vatican and War in Europe. London: Burns Oates & Washbourne, 1941.

MLA (8th ed.) Citation

Gwynn, Denis. The Vatican and War in Europe. Burns Oates & Washbourne, 1941.

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