APA引文

Mueller, F. H. Three stages of encyclical social philosophy.

Chicago Style (17th ed.) Citation

Mueller, Franz H. Three Stages of Encyclical Social Philosophy. St. Louis : Catholic Central Union (Verein) of America, 1961.

MLA引文

Mueller, Franz H. Three Stages of Encyclical Social Philosophy.

警告：这些引文格式不一定是100％准确.