APA (7th ed.) Citation

Watt, L. (1941). Rerum Novarum and Social Institutions in Great Britain. Oxford.

Chicago Style (17th ed.) Citation

Watt, Lewis. Rerum Novarum and Social Institutions in Great Britain. Oxford, 1941.

MLA (8th ed.) Citation

Watt, Lewis. Rerum Novarum and Social Institutions in Great Britain. Oxford, 1941.

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