APA (7e ed.) Bronvermelding

Leo XIII, P. C. C. P. (1924). Encyclical Letter on the Condition of Labor. Brooklyn.

Chicago (17e ed.) Bronvermelding

Leo XIII, Pope; Catholic Church. Pope. Encyclical Letter on the Condition of Labor. Brooklyn, 1924.

MLA (8e ed.) Bronvermelding

Leo XIII, Pope; Catholic Church. Pope. Encyclical Letter on the Condition of Labor. Brooklyn, 1924.

Let op: Deze citaties zijn niet altijd 100% accuraat.