Leo XIII, P. (1940). Rerum Novarum: Encyclical Letter of Pope Leo XIII on the Condition of Labor. New York.
Style de citation Chicago (17e éd.)Leo XIII, Pope. Rerum Novarum: Encyclical Letter of Pope Leo XIII on the Condition of Labor. New York, 1940.
Style de citation MLA (8e éd.)Leo XIII, Pope. Rerum Novarum: Encyclical Letter of Pope Leo XIII on the Condition of Labor. New York, 1940.
Attention : ces citations peuvent ne pas être correctes à 100%.