APA (7th ed.) Citation

Pius XI, P. (199). Encylical letter on social reconstruction. Boston.

Chicago Style (17th ed.) Citation

Pius XI, Pope. Encylical Letter on Social Reconstruction. Boston, 199.

MLA (8th ed.) Citation

Pius XI, Pope. Encylical Letter on Social Reconstruction. Boston, 199.

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