APA引文

Leo XIII, P. (1880). Encyclical Letter of Pope Leo XIII. on christian Marriage. Philadelphia.

Chicago Style (17th ed.) Citation

Leo XIII, Pope. Encyclical Letter of Pope Leo XIII. on Christian Marriage. Philadelphia, 1880.

MLA引文

Leo XIII, Pope. Encyclical Letter of Pope Leo XIII. on Christian Marriage. Philadelphia, 1880.

警告：这些引文格式不一定是100％准确.